Board Thread:False Info and Speculative Discussion/@comment-28351839-20161123130232/@comment-26879545-20161126135739

^ There's no reason for her to be alive, though. As shown through Malia, Scott and Lydia, the memories of the specific person is gone, but the events still happened.

Claudia's death, for all intents and purposes, should have still happened even though Stiles was erased. I don't want to say, definitively, that something is going on, but it certainly looks like there's more to her sudden ressurection than just "Stiles being erased."