Avengers: Endgame Encore Leaks Before Release as Disney Scrambles to Pull Doomsday Teasers

Marvel’s Big Endgame Encore Surprise Is Already Online

Marvel wanted fans to return to theaters for Avengers: Endgame Encore and experience the 2019 blockbuster with new material designed to bridge the gap between Endgame and this year’s Avengers: Doomsday. Instead, some of that surprise has arrived online before the movie officially opens. Following early screenings in international markets, cellphone recordings of the new material began circulating across social media, giving fans an early look at scenes that were supposed to be one of the main reasons to revisit Endgame. Reports say Disney and Marvel have been moving quickly to remove the unauthorized footage through copyright claims, but new uploads and reposts have continued to appear. 

The leak is particularly damaging because this isn't simply a few seconds of random footage. The new material reportedly contains several important pieces of Marvel's next chapter. Reports describe Loki appearing at Steve Rogers and Peggy Carter's home, a mysterious encounter involving Bruce Banner and Doctor Doom, a disturbing sequence at the Time Variance Authority, and another short scene involving Doom that deliberately echoes Tony Stark's iconic armor-forging sequence from the original Iron Man. The scenes reportedly run for only a few minutes in total, but their implications for Avengers: Doomsday are considerably larger. 

The Biggest Surprise May Be Loki

One of the leaked additions reportedly continues Steve Rogers' story after the ending of Endgame. The original film concluded with Steve returning to Peggy Carter and finally getting the peaceful life he had wanted. The new footage reportedly adds an unexpected visitor to that moment: Loki.

According to multiple reports describing the footage, Loki arrives at Steve and Peggy's home and appears to offer them help. The exact circumstances surrounding the encounter remain unclear, but the scene reportedly uses the TVA-era version of Loki, connecting Steve's seemingly quiet alternate life to the increasingly complicated multiverse storyline. It is the kind of Marvel connection that instantly makes a previously closed chapter feel relevant again. 

Then Doctor Doom Enters the Story

The most dramatic reported scene involves Bruce Banner. The footage reportedly shows Banner isolated in a heavily protected underground facility while working on a way to control his gamma-related transformation. He appears confident that nobody can reach him — until someone does.

The footage reportedly never gives viewers a conventional full reveal of Doctor Doom in the scene. Instead, Doom's voice is heard telling Banner that he has come to collect him, followed by signs that Hulk's transformation is about to begin. Other reports describe Doom-related imagery appearing afterward. If accurate, the scene gives Avengers: Doomsday a direct reason to bring Bruce Banner and Hulk back into the larger story while establishing Doom as a threat capable of reaching even the places Banner believed were completely secure. 

The Multiverse May Be Falling Apart

The TVA footage could be even more important. Reports say Mobius, Ouroboros and other TVA characters discover multiple universes beginning to collide. What initially appears to be an isolated incident reportedly becomes something much larger, with numerous realities appearing on TVA monitors.

One reported detail has particularly caught Marvel fans' attention: the footage allegedly references multiple existing or previously seen Marvel realities, suggesting that the events of Doomsday may involve far more than one or two universes. The basic idea fits directly with the multiverse crisis Marvel has been building toward, but the exact details remain based on leaked footage and descriptions rather than a complete official explanation from Marvel Studios. 

Disney Is Fighting the Leak One Upload at a Time

Disney's response has been unusually fast. Reports say Marvel has been filing copyright claims against leaked videos appearing on X and other social platforms, with some posts disappearing shortly after being uploaded. In at least some cases, users reportedly reposted the footage after the first takedown, only for those copies to be removed as well. The result has become something of a digital game of whack-a-mole, with Disney trying to contain footage that has already been copied and redistributed. 

That response is also significant because copyright takedowns don't necessarily confirm every detail being claimed online. Some descriptions come from people who say they attended early screenings, while others are based on leaked recordings or social-media reports. Several entertainment outlets have independently reported that the footage exists, but the precise interpretation of individual scenes can still be wrong or incomplete. Marvel has not publicly confirmed every reported detail.

Why This Leak Matters for Avengers: Doomsday

The timing couldn't be worse for Marvel — or more exciting for fans. Avengers: Endgame Encore arrives in theaters on September 25, while Avengers: Doomsday is scheduled for December 18, 2026. That gives Marvel only a short window to preserve the mystery surrounding the new footage before audiences begin discussing the connections openly.

And those connections appear designed to make Endgame feel like part of the next Avengers story rather than simply a nostalgic re-release. Loki, Hulk, the TVA, Doctor Doom and collapsing universes all point toward the same larger idea: the MCU's next major conflict is no longer about simply defeating one villain. It is about what happens when the structure separating different realities begins to break down. 

For fans who want to experience Endgame Encore without spoilers, the safest option is to avoid social-media discussions and leaked footage until seeing the theatrical version. The leaked clips may be circulating widely, but the way Marvel intended these moments to land is still on the big screen.

One thing is already clear, though: Marvel didn't bring audiences back to Endgame just for nostalgia. The studio appears to be using the movie's return to quietly open the door to the next Avengers saga — and the internet has opened that door several days early.