[Spoilery, so read at your own risk] Quite a bit of information has trickled out over time regarding the final episodes of Battlestar Galactica, some official from the Sci-Fi clue site and the trailers they've shown in heavy rotation, and some as spoilers from a variety of sources on the web. If we think of them as puzzle pieces w
e can begin to see how it all fits together. 
We know that Zarek will launch a coup and will likely be killed and take a lot of people with him. Gaeta is very likely 
not the final Cylon and seems to make a bad choice in aligning with Zarek and may end up dead or at least ostracized. There may be three factions, not just two: Zarek followers, Baltar followers, and those loyal to Adama and his rebel Cylon alliance.
Dualla takes on a larger role based upon images we've seen and what some have reported are her family's ties to the Adamas - and she is dressed in a more elegant fashion, perhaps because she is the 5th, and the Cylon wardrobe closet has her size in chic garments?
Tigh is uncomfortable
, as always, and marches into the sea (perhaps a nod in reference to the god Poseiden?). There are flashbacks to earlier times on Caprica - Tigh and Adama at a strip club no less - where Ellen and Six are both present (is it a dream, did it really happen?). Tigh and Adama have another liquored up manly tiff - didn't they do this already? Tigh pulls a gun
this time but of course doesn't shoot.
There are shootouts and people die and are maimed: Doral takes a head-shot on the Galactica and likely expires, and Helo looks like he loses a leg (Is Gaeta responsible? Forwarding the bad karma after Anders shot him on the Demetrius?) and possibly bleeds out and dies.
Tyrol sees the past by touching the wall of the Temple of Aurora and says, "I rememb
er everything," and this seems to mean he walked Earth before it was a bombed-out wasteland and was possibly there for, or even responsible for its destruction.
So far Tory has not been foreshadowed for the final episodes, so she may not last long either.
Anders, Leoben and L
ee all still orbit Kara as love-interests, and Lee fights alongside her at least a couple of times, but she no longer owns his heart it seems. Leoben goes with Kara on a walk and they find her (A: original dead body, B: original Viper wreckage, C: a lovely field of Morel mushrooms), Leoben still loves her, but since this is a surprise to him, perhaps he did not save her from her death in the Vortex and did 
not clone her. Who did? Kara is ostracized even more once the whatever is found by she and Leoben on crispy Earth (as a clue video clip has a Pegasus pilot hating on her for not being human).
D'Anna we have learned will be left behind on the burned out Earth. This will be interesting. Why would she relinquish power now that she's free from being boxed?
Head-Six returns but for how long? In the deleted scenes from Season 4, Part I the
y were going to fade her out before one of Baltar's religious speeches doing the Jesus allegory thing (Horrors! Talk about sacrilege). Poor Tricia Helfer had to wear that skimpy red dress on the cold outdoor beach location in Canada for Head-Six's reappearance. The character has said she's an angel again and aga
in, and she did physically pick Baltar up after a corridor beat-down.
Simon the Cylon gets a part in one show sounds like, but probably only to be killed. Anders will be featured prominently in the post-series movie The Plan which will focus in part o
n his days as a sports celebrity on Caprica (expect some skin Trucco-lovers). Doc Cottle no doubt treats more wounded and dying and has more gruff remarks. Ellen makes an appearance - perhaps only in flashback. Roslin takes a mega-dose of Kamala and sees the truth of it all and it makes her go blind (possibly), and she seems to end up back on the rebel Base Ship on that smooth sleeping slab (or couch thingy) after having been back on the Galactica and possibly incarcerated. Roslin is seen laughing/crying in the fountain at Citywalk Market on Caprica where Six 
and Baltar had that fateful meeting prior to Six meeting an unseen associate and saying, "It's about time."
There is the possibility that Earth is not Earth, as in their haste to find that signal Kara's Magic Viper is picking up, they went to the wrong planet around a nearby star but which is close enough that Gaeata's reading of the constellation star patterns li
ned up anyway.
Tyrol is going to kill somebody - the knife in the Last Supper image tells us this ... will it be one of the hybrid Cylon children - Hera or his own boy?
Visually Sci-Fi has teased Helo, Lee, Dualla, Gaeta, and Roslin as the Final Cylon (and a few others), and SyFyPortal claims they've known fo'eva who the 5th is
, and only teased five names (of course): Roslin, Gaeta, Ellen, Lee and Cally (!?). Ron Moore says the 5th is not in the Last Supper image, and Roslin's image was altered once to color-match the burning pot of Kamala 
to her charcoal grey suit, and in the 7th clue on the Sci-Fi clue site they have now remo
ved Roslin from the Last Supper image. The actors have almost all raved that the ending is great, and it is an ending, but Moore has cautioned that it is an ending that is somewhat open-ended and leaves room for doubt. The key character to emerge is likely to be Xeno Fenner and I expect the ending to reference Xeno's Paradox in explaining the repeating cycles of time.
On IMDB the cast lists for the episodes give some clue as to what will happen: 11-Sometimes A Great Notion - no guest stars 12-A Disquiet Follows My Soul - no guest stars 13-The Oath - no guest stars 14-Blood On the Scales - no guest stars 15-No Exit - Nowart - Colin Corrigan 16-Deadlock - Nowart - Colin Corrigan 17-Someone To Watch Over me Tracey Ann - played by Leela Savasta (Road Less Travelled and Escape Velocity) 18-Marine Nathanson - Curtis Caravaggio, Zak Adama - Tobias Mehler, Tra
cey Ann - Leela Savasta 19- Marine Nathanson - Curtis Caravaggio, Crewman Specialist Prosna - Michael Eklund, Rafferty - Patrick Gilmore, Tracey Ann - Leela Savasta, Zak Adama - Tobias Mehler, Captain Sarah Alchemer (Jacqueline Ann Steuart) 20--Everyone in the Last Supper image is listed, as are Dualla, Gaeta, Tory, and Police Officer(Stefanie Samuels), Xeno Fenner (David Patrick Green),Captain Sarah Alchemer (Jacqueline Ann Steuart), Zak Adama (Tobias Mehler), Nowart - Colonial Marine (actor Colin Corrigan), Captain Doyle Franks - Susan Hogan (wife of Michael Hogan ... was in Crossroads Pts I and II), Judge #2 (from Crossroads) - actor William Samples
not the final Cylon and seems to make a bad choice in aligning with Zarek and may end up dead or at least ostracized. There may be three factions, not just two: Zarek followers, Baltar followers, and those loyal to Adama and his rebel Cylon alliance.
Dualla takes on a larger role based upon images we've seen and what some have reported are her family's ties to the Adamas - and she is dressed in a more elegant fashion, perhaps because she is the 5th, and the Cylon wardrobe closet has her size in chic garments? Tigh is uncomfortable
, as always, and marches into the sea (perhaps a nod in reference to the god Poseiden?). There are flashbacks to earlier times on Caprica - Tigh and Adama at a strip club no less - where Ellen and Six are both present (is it a dream, did it really happen?). Tigh and Adama have another liquored up manly tiff - didn't they do this already? Tigh pulls a gun
this time but of course doesn't shoot.There are shootouts and people die and are maimed: Doral takes a head-shot on the Galactica and likely expires, and Helo looks like he loses a leg (Is Gaeta responsible? Forwarding the bad karma after Anders shot him on the Demetrius?) and possibly bleeds out and dies.
Tyrol sees the past by touching the wall of the Temple of Aurora and says, "I rememb
er everything," and this seems to mean he walked Earth before it was a bombed-out wasteland and was possibly there for, or even responsible for its destruction.
So far Tory has not been foreshadowed for the final episodes, so she may not last long either. 
Anders, Leoben and L
ee all still orbit Kara as love-interests, and Lee fights alongside her at least a couple of times, but she no longer owns his heart it seems. Leoben goes with Kara on a walk and they find her (A: original dead body, B: original Viper wreckage, C: a lovely field of Morel mushrooms), Leoben still loves her, but since this is a surprise to him, perhaps he did not save her from her death in the Vortex and did 
not clone her. Who did? Kara is ostracized even more once the whatever is found by she and Leoben on crispy Earth (as a clue video clip has a Pegasus pilot hating on her for not being human).D'Anna we have learned will be left behind on the burned out Earth. This will be interesting. Why would she relinquish power now that she's free from being boxed?
Head-Six returns but for how long? In the deleted scenes from Season 4, Part I the
y were going to fade her out before one of Baltar's religious speeches doing the Jesus allegory thing (Horrors! Talk about sacrilege). Poor Tricia Helfer had to wear that skimpy red dress on the cold outdoor beach location in Canada for Head-Six's reappearance. The character has said she's an angel again and aga
in, and she did physically pick Baltar up after a corridor beat-down. Cavil will no doubt try to hunt down the humans and maybe the Betrayer Sharon of the webisodes has led him to the fleet with her fiberoptic wire-into-the-hand routine? Cavil is the "Keeper of the keys," according to series creator Ron Moore and he figures prominently in the post-series
movie The Plan. Head-Six is seen in front of a newstand in modern New York City (pre-blast I'm guessing).
movie The Plan. Head-Six is seen in front of a newstand in modern New York City (pre-blast I'm guessing).
Simon the Cylon gets a part in one show sounds like, but probably only to be killed. Anders will be featured prominently in the post-series movie The Plan which will focus in part o
n his days as a sports celebrity on Caprica (expect some skin Trucco-lovers). Doc Cottle no doubt treats more wounded and dying and has more gruff remarks. Ellen makes an appearance - perhaps only in flashback. Roslin takes a mega-dose of Kamala and sees the truth of it all and it makes her go blind (possibly), and she seems to end up back on the rebel Base Ship on that smooth sleeping slab (or couch thingy) after having been back on the Galactica and possibly incarcerated. Roslin is seen laughing/crying in the fountain at Citywalk Market on Caprica where Six 
and Baltar had that fateful meeting prior to Six meeting an unseen associate and saying, "It's about time."Adama is on the march with Marines and weapons - probably to put down the coup in at least one instance. Very proba
bly Zarek's coup works for a while but Kara, Lee, Helo, Adama, Roslin and others (including Cylons) overcome it and this is when Roslin shouts "I'm coming for all of you," and Adama is seen blindfolded in an air-lock.
bly Zarek's coup works for a while but Kara, Lee, Helo, Adama, Roslin and others (including Cylons) overcome it and this is when Roslin shouts "I'm coming for all of you," and Adama is seen blindfolded in an air-lock.
There is the possibility that Earth is not Earth, as in their haste to find that signal Kara's Magic Viper is picking up, they went to the wrong planet around a nearby star but which is close enough that Gaeata's reading of the constellation star patterns li
ned up anyway.Tyrol is going to kill somebody - the knife in the Last Supper image tells us this ... will it be one of the hybrid Cylon children - Hera or his own boy?Visually Sci-Fi has teased Helo, Lee, Dualla, Gaeta, and Roslin as the Final Cylon (and a few others), and SyFyPortal claims they've known fo'eva who the 5th is
, and only teased five names (of course): Roslin, Gaeta, Ellen, Lee and Cally (!?). Ron Moore says the 5th is not in the Last Supper image, and Roslin's image was altered once to color-match the burning pot of Kamala 
to her charcoal grey suit, and in the 7th clue on the Sci-Fi clue site they have now remo
ved Roslin from the Last Supper image. The actors have almost all raved that the ending is great, and it is an ending, but Moore has cautioned that it is an ending that is somewhat open-ended and leaves room for doubt. The key character to emerge is likely to be Xeno Fenner and I expect the ending to reference Xeno's Paradox in explaining the repeating cycles of time.
On IMDB the cast lists for the episodes give some clue as to what will happen: 11-Sometimes A Great Notion - no guest stars 12-A Disquiet Follows My Soul - no guest stars 13-The Oath - no guest stars 14-Blood On the Scales - no guest stars 15-No Exit - Nowart - Colin Corrigan 16-Deadlock - Nowart - Colin Corrigan 17-Someone To Watch Over me Tracey Ann - played by Leela Savasta (Road Less Travelled and Escape Velocity) 18-Marine Nathanson - Curtis Caravaggio, Zak Adama - Tobias Mehler, Tra
cey Ann - Leela Savasta 19- Marine Nathanson - Curtis Caravaggio, Crewman Specialist Prosna - Michael Eklund, Rafferty - Patrick Gilmore, Tracey Ann - Leela Savasta, Zak Adama - Tobias Mehler, Captain Sarah Alchemer (Jacqueline Ann Steuart) 20--Everyone in the Last Supper image is listed, as are Dualla, Gaeta, Tory, and Police Officer(Stefanie Samuels), Xeno Fenner (David Patrick Green),Captain Sarah Alchemer (Jacqueline Ann Steuart), Zak Adama (Tobias Mehler), Nowart - Colonial Marine (actor Colin Corrigan), Captain Doyle Franks - Susan Hogan (wife of Michael Hogan ... was in Crossroads Pts I and II), Judge #2 (from Crossroads) - actor William Samples
