Marvel Studios' decision to re-releaseAvengers: Endgameon 25 September 2026 with newly completed footage has sparked a wave of fan theories, with one gaining particular traction online. Viewers are speculating that the added scenes could reveal that Doctor Doom quietly benefited from Iron Man's final snap, reframing one of the Marvel Cinematic Universe's most pivotal moments as the starting point for its next major threat.

The re-release is not being framed as a standard extended edition. Instead, filmmakers have indicated that the additional material serves as a direct narrative bridge toAvengers: Doomsday. That positioning has led fans to believe the new footage will introduce or tease key elements of the next Avengers storyline rather than simply expand on existing scenes.

The originalEndgameconcluded with Tony Stark's sacrifice to defeat Thanos, a moment widely regarded as the emotional and narrative climax of the Infinity Saga. The confirmation that new scenes will connect that ending to future events has prompted renewed scrutiny of what the snap may have triggered beyond its immediate effects.

At the centre of the currentAvengers: Doomsdaytheory is the idea that Stark's use of the Infinity Stones released a level of cosmic energy that could have had wider consequences.

Within established MCU canon, the Stones are shown to generate immense power, with detectable energy signatures and lasting physical effects on those who wield them.

Fans suggest that such an event could have been observed, tracked or even harnessed by another figure operating behind the scenes.

This has led to speculation that Doctor Doom, a character long associated in Marvel Comics with both advanced technology and mystical knowledge, may have used the aftermath of the snap to his advantage.

One of the most widely discussed ideas is that Doom detected the snap as a cosmic-level energy event.

In this interpretation, Doom does not intervene immediately, but instead uses the snap as a cosmic marker, allowing him to monitor a weakened and destabilised universe.

Another theory suggests that the aftermath of Iron Man's snap left behind usable energy remnants.

Source: International Business Times UK