Doctor Doom Takes Over From Iron Man To Become Avengers: Doomsday’s Villain According To MCU Theory

A bold new Marvel Cinematic Universe theory suggests Doctor Doom could take over Iron Man’s role in Avengers: Doomsday – and not just metaphorically. Robert Downey Jr. is returning to the MCU timeline as the iconic villain Doctor Doom, not Iron Man. While it’s been confirmed that this will not be a Tony Stark variant, a very compelling theory suggests that it could be Doom trying to take over from Iron Man.