Tony Stark’s place in the MCU may not be as closed off as Avengers: Endgame once made it seem.
A new theatrical version of Avengers: Endgame is set to arrive in September with additional scenes connected to Avengers: Doomsday, giving Marvel Studios a clean way to bring Robert Downey Jr. back into the story without reversing Iron Man’s death.
The move comes as Marvel prepares to push the Multiverse Saga toward its biggest chapter yet. Avengers: Doomsday is scheduled to unite the Avengers, the X-Men, and the Fantastic Four against Doctor Doom before Avengers: Secret Wars follows in December 2027.
Marvel’s current saga has moved faster than the Infinity Saga, which took 11 years to reach Avengers: Endgame. The Multiverse Saga began with WandaVision and is expected to reach Secret Wars after roughly six years.
Avengers Endgame Re-release Adds New Doomsday Link
Marvel Studios confirmed after its CinemaCon 2026 presentation that Avengers: Endgame will return to theaters in September with new scenes.
Those scenes are designed to connect directly with Avengers: Doomsday, though Marvel has not revealed what footage will be added or which characters will appear in it.
The timing has drawn attention because Avengers: Doomsday is expected to continue from the aftermath of Avengers: Endgame. That gives Marvel room to place new story material inside the 2019 film while keeping the original ending intact.
One possible route is Tony Stark. New scenes could revisit him before his death during the Battle of Earth, especially because Endgame left some parts of his time-travel breakthrough moving at a very quick pace.
The film already showed Stark solving the key problem behind the Avengers’ time heist, but it did not spend much time on what he may have understood about the risks. A re-release gives Marvel a chance to sharpen that part of the story.
Tony Stark’s Time Warning Could Matter Again
Stark’s warning that messing with time can cause time to mess back has become more important now that the MCU has spent years dealing with timelines, variants, and broken realities.
That line could become a doorway into Avengers: Doomsday if Marvel uses the added scenes to suggest Stark noticed something larger before the Avengers defeated Thanos.
The idea would not require undoing his sacrifice. Instead, it would allow Tony Stark to influence the next Avengers film through information, warnings, or discoveries made before his final battle.
Robert Downey Jr.’s return to the MCU is already set through a different role, with the actor playing Doctor Doom rather than Iron Man. That choice avoids directly reversing Stark’s death, while still putting Downey back at the center of Marvel’s next major event.
Early concern over Avengers: Doomsday was tied partly to that balance. Chris Evans’ confirmed return as Steve Rogers also raised questions about whether Marvel would disturb the ending of Avengers: Endgame.
The CinemaCon trailer appears to have eased some of that concern by making Downey’s return about Victor Von Doom rather than a simple Iron Man revival.
Doctor Doom Could Create a Stark Problem
The new Endgame footage could also help set up a personal connection between Doctor Doom and Tony Stark.
Doctor Doom is expected to wear his familiar metal mask for much of the film, but the moment his face is shown, the resemblance to Stark would likely become an issue inside the story.
That would matter to characters who knew Tony closely, including Thor, Steve Rogers, and Doctor Strange.
Adding a clue inside Avengers: Endgame could make that resemblance feel less abrupt when Avengers: Doomsday arrives. It could also give the Russos and writers Michael Waldron and Stephen McFeely a firmer bridge between the Infinity Saga and the Multiverse Saga.
That bridge may be important because the Multiverse Saga has had a less direct path than the Infinity Saga. The next Avengers film now has to gather several major storylines and make them feel like one payoff.
Planting new material inside Endgame lets Marvel point back to one of its strongest films while reframing the road to Doomsday.
Marvel Can Use Its Returning Stars More Directly
Downey has already been involved with Avengers: Doomsday, which would make additional Stark material for the Endgame re-release easier to justify from a production standpoint.
The same logic applies to Evans, whose Steve Rogers may also receive new context after his final Infinity Stones mission.
Marvel has not confirmed that either actor appears in the added Endgame scenes. Still, with both names already back in the MCU conversation, the studio now has a practical way to use them without treating Avengers: Endgame as unfinished business.
Avengers: Doomsday is scheduled to hit theaters on December 18, 2026.
