User blog comment:Maria Trimble/Death in Supernatural Shows/@comment-174.59.250.172-20130615205813

One thing is though, we don't know she's dead for sure. Yes her body looked bad but I saw a comment earlier that made me think. Allison didn't bump into anything. Erica's head probably didn't fall for no reason so she could just be badly injured. Hell, Peter was still alive after being lit on fire on "Codebreaker" and it wasn't until Derek slit his throat that he died. The healing process could take a while and she could easily come back later on this season.