Board Thread:Manga/@comment-26495049-20161106042532/@comment-29958651-20161106120845

Ymir Fritz have died, remember, her soul was then split up between nine original titans. However, we cannot exclude the reincarnation as one of the elements that could enlight the connection between original Ymir Fritz and Lady Ymir, as we know her from the beginning of the story. I think it's more plausible that after Ymir Fritz died, her mind was reincarnated (maybe multiple times) into some other form of Ymir.