Robert Downey Jr. just sent Marvel fandom into chaos with his latest Insta post! Fans are convinced he’s hinting at an Iron Man vs. Doctor Doom showdown in Avengers: Secret Wars after showing off both Secret Wars and Iron Man: Legacy of Doom comics. The wildest part? He’s playing Doom now, not Tony! Could we really see Downey Jr. battling himself on screen? The meta possibilities are insane and the debate is ON: is this a tease or just trolling? #Entertainment #Movies #MarvelRumors