User blog comment:The Mighty Thor/new idea on who the villain for Thor: The Dark World will be/@comment-5339564-20120727192609/@comment-1153722-20120801103721

I think we can all say that Red Skull isn't really dead, since he was apparently supposed to be the villain in the original draft of The Avengers. Or they toyed with the idea, I don't remember. Regardless, there was discussion to have him in The Avengers, and if he's dead, that wouldn't be very possible.