Avengers: Doomsday and the Madness of Trying to Figure Out Marvel's Next Big Secret

Perhaps the biggest question hanging over everything is Doctor Doom himself. Robert Downey Jr. is one of the most recognisable faces in Marvel history because of his role as Tony Stark/Iron Man. Now Marvel has taken that same actor and placed him on the opposite side of the battlefield. That creates an almost unavoidable question: How much will Tony Stark's legacy matter to Doctor Doom?