Board Thread:Questions and Answers/@comment-25322628-20170113025521/@comment-29463491-20170412084039

There's no need for any argument, it has been 4 years since Historia received Ymir's love letter and Ymir stated that she will die soon. Chances for her to survives is lower than Sasha's survival rate in Episode 28, and I doubt that Annie was rescued in the time skip.

I know we all love Ymir and hope she returned to Historia but don't you think it's a blind hope