That's certainly an interesting theory, and it doesn't seem implausible. That said, "Avengers: Doomsday" could also introduce Doom as a heroic figure who must save the Sacred Timeline from extinction.

Galactus looms over Manhattan in The Fantastic Four: First Steps! A new fan theory hints at Robert Downey Jr.’s Doctor Doom ...

Although Benedict Cumberbatch has spoiled that Doctor Strange won't be in Avengers: Doomsday, it backs up a popular theory about Captain America.

From Chris Evans to Robert Downey Jr., here are 12 actors who have stepped in to play various characters across the Marvel ...

The theory connects to a pivotal ... Stark never became Iron Man in this timeline – instead, his genius took a darker turn, leading him to become Doctor Doom.

playing multiple roles to fit into the “sacred” timeline. In fact, the announcement of Robert Downey Jr.’s comeback to the MCU works in tandem with the multiverse theory as he is the face of Tony ...