So are we gonna start a pool as to the identity of the last cylon?
I'll go out on a limb.....
Seriously doubt it is Kara Thrace. Too obvious. Same with Laura Roslin. The writers want us to believe it is one of them.
But I did have thoughts about Ellen Tigh. She was "dead" previously, and then miraculously/conveniently reappeared in time to torment Colonel Tigh for a while. From a timeline perspective this could make sense. I wrestled with the idea that Tigh was and always had been a Cylon. If the Cylons planted him long ago, even as a child, then making him weak enough to hook up with Ellen makes sense.
She represents a lot of things that are wrong with humanity.
Looking forward to the rest of this season.
I bet most of the episodes will end with "To be continued..."