A new fan theory suggests the upcoming Avengers: Endgame re-release... 1 / 8
... will reveal the hammering sound referencing Iron Man at the end of the original film... 2 / 8
... will bring Doctor Doom to the Marvel Cinematic Universe. 3 / 8
Although a lot of fans want to see Doctor Doom sooner rather than later... 4 / 8
... it's incredibly unlikely this will actually happen. 5 / 8
Disney didn't have the rights to Doctor Doom until just before Endgame released... 6 / 8
... making it unlikely such a scene was ever shot. 7 / 8
Marvel Studios President Kevin Feige also indicated the former Fox characters won't appear for awhile. 8 / 8