Upon reflection I do have questions about Archie. We never saw his face, so could he be someone we know? I'm not sure who it would be. It is possible we will meet a new character next season who turns out to be Archie. It was difficult to say who the dead bodies in the hospital were, so Archie could have killed them to make his escape. I don't think he himself is dead. I just hope he doesn't end up being one of those Michael Myers killers who just keeps coming back no matter what happens to him!
I REALLY hope we are not in a Friday the 13th scenario where a family member avenges a death and then the victim (Jason/Angela) comes back to avenge on their own. LOL. I doubt it