Board Thread:Questions and Answers/@comment-25322628-20170113025521/@comment-30069705-20170410212834

The irony is Eren may now wish to save all the titans now that he knows the truth about them.

Of course, the titan powers themselves will still need to go, if it ever turns out to be possible. That may require a major sacrifice. It could be Eren, it could be all the remaining titan shifters at that time (except for maybe one), or it could be Zeke (he did promise to save Eren one day after all). It could even turn out that no shifter would need to die, but you can bet it won't be that easy. I even have a feeling that Zeke, in particular, will die anyways even if it's due to overexertion of titan powers before the final contract or something.

Isayama could definitely go back to doing a pointless overly bad ending where everyone dies pointless deaths for nothing, and Eldia is screwed, just for the sake of betraying and traumatizing the viewers rather than for the story itself, but as he did pretty much say that he doesn't even want to take that route, I'll give him the benefit of the doubt for now.

And Ymir is pretty much in the same boat as Eren and the other shifters for obvious reasons. Nevertheless, yes. You can bet she's still alive for now. Just MIA by default so far.

Historia also has a red flag for danger of being sacrificed for now.