Rumor has it that Robert Downey Jr. may be heading back to the Marvel Cinematic Universe – but not as Tony Stark. Were not sure about you, but were still mourning Iron Man. While its been five years since Downey Jr. exited the MCU in Avengers: Endgame 2019 , his presence is still very much felt in the film series primarily because it just hasnt hit the same since he left. Before his exit, Downey...