I have a few theories- perhaps its just blind hope but I have to believe that Winry (and others of course) will be okay. *possibly in denial*
1. When Truth is released after Father's death, the life will flow back into things. Destroying father and the homunculi, as well as freeing Truth seems like it would be in big need of some payback, you know?
2. This is more of a minor theory, and I'm going to do a fic about it. But what if the souls inside of Father- the new Amestiran souls- started rebelling against him? He's got a hell of a lot more people in him this time around, and its possible that if their souls are still there, the souls of people like Winry or Pinako, seeing Ed and Al in danger, will react. I know its a slim possibility, but its a cool idea I think. :)
3. Mei and Xingese alchemy- she'll strut her stuff somehow.
On a side note- anyone wonder where RanFan was? And my hopes of Wrath caring about his wife seem to have been dashed. :( I guess that's what fanfiction is for. 'Course... Wrath may not know where his wife is (slim chance again, I know) and because he doesn't know Roy's gang kidnapped her, he thinks she's at the center of the circle and so she won't be harmed (at their house or something) because it seems like the center goes beyond just that bit underground- after all, Scar and Riza and everyone don't seem to be collapsing.
On another note- if Ed and everyone were sacrifices, why aren't they dead? What if they sacrificed something else- like their knowledge of the gate, maybe? And how are they to defeat Father now that he's all-powerful?
Ha, I used to have this theory that the nationwide transmutation circle and the sacrifices were for two completely different things. And, because Hohenheim nailed Father about wanting a family, I had this slightly crazy thought that he would make himself a wife (sorta like Dante from the old series only in my head he made her look like Trisha somehow, just because that would kill Hoho).
What are all your thoughts?