Avengers: Endgame Encore Leaks Uncover Massive Doomsday Plot Before Dec. 18 Blockbuster

Six years after its original theatrical run, Marvel Studios’ Avengers: Endgame is returning to cinemas in an extended “Encore” version running four minutes longer than the original cut, and the additional footage has already leaked in full ahead of its official Sept. 25 debut. The new scenes are a deliberate setup for the franchise’s next blockbuster, Avengers: Doomsday, which lands in theaters on Dec. 18, and they reveal a sprawling multiversal crisis, a resurrected Captain America, and a shocking new twist involving Doctor Doom. The leaks emerged after moviegoers in select regions illegally recorded early screenings, with footage circulating online as far back as Sept. 23, meaning fans who planned to catch the Encore in theaters should brace themselves for spoilers.

According to reports circulating across the web, the Encore contains three entirely new scenes that establish the central conflict driving the upcoming film. The most significant development concerns the fate of the original Avengers roster, with strong implications that the Hulk may return to the lineup. The leaks also clarify the mechanics of the “Incursion” events—a multiversal threat that mirrors the Marvel Comics storyline that inspired Doomsday, titled “Time Runs Out”—and confirm that Loki has apparently recruited Steve Rogers to help combat the coming catastrophe.

A Reimagined Ending and a Time-Traveling Captain America

The most visibly altered moment is the film’s original closing scene, in which Steve Rogers (Chris Evans) and Peggy Carter (Hayley Atwell) share a dance after he journeys to the past to spend a lifetime with his great love. In the Encore, Loki (Tom Hiddleston) now appears at the door, a change that offers a plausible explanation for how Captain America returns in Doomsday. Rather than reappearing as an aged man, Rogers is set to come back in his prime, with Loki positioned as the “keeper of time” and an ally of the Time Variance Authority. This reimagining ties Endgame more tightly to the events that follow and gives the franchise a clear narrative bridge between the two films.

The biggest new information is that Hulk may appear in Avengers: Doomsday, which is great news for fans of the original Avengers lineup. However, Doom could have other plans for Banner instead, so nothing is definitive at this moment.

Leaked footage commentary

Speaking of the Time Variance Authority, the organization makes its presence felt midway through the Encore’s credits with a new scene set in its central control hub. Mobius M. Mobius (Owen Wilson) arrives expecting a routine day at work, only to discover that thousands of universes are dying in the Incursion events, where two universes collide with one another. The stakes are existential: if the colliding worlds fail to act, both are doomed to mutual annihilation, and one universe may attempt to destroy the other to survive.

Banner’s Prison and the Doom Twist

The final post-credit scene sends fans back to Bruce Banner (Mark Ruffalo) in the aftermath of Spider-Man: Brand New Day. Banner is now imprisoned in an underground facility, which he hopes will contain his alter ego, the Hulk, while he continues his experiments with gamma energy. His solitude is interrupted by an unexpected visitor: Doctor Doom (Robert Downey Jr.). Doom does not appear on screen, but he delivers a single line that is barely intelligible in the leaked footage, prompting fans to speculate across a wide range of interpretations. What is certain is that Banner vanishes, leaving the symbol of Latveria carved into the floor of his cell—a chilling hint that Doom’s plans for the Hulk may be far more sinister than Banner anticipated.

Overall, the new footage does not introduce a vast amount of fresh information, but it accomplishes its core job: setting up the upcoming Avengers film and forging a stronger connective tissue between Endgame and Doomsday. The leaks have already generated significant buzz within the community, with fans dissecting every frame and debating the implications of Loki’s timekeeping role, the Incursion threat, and Doom’s cryptic warning.

Looking Ahead

Avengers: Endgame Encore will officially debut in theaters on Sept. 25, though early screenings in certain regions have already begun, which is what allowed the footage to leak in its entirety. Avengers: Doomsday is slated for a Dec. 18 theatrical release, and the new scenes serve as a direct prologue to that event. Until then, audiences are left to speculate about whether the Hulk will truly return, how Loki’s alliance with the Time Variance Authority will play out, and what Doom intends to do with Banner and the gamma energy he has been studying. For now, the multiverse is in crisis, and the Avengers are being assembled for one final, universe-saving stand.

Fans planning to attend the Encore screenings should be aware that the spoilers are now everywhere, and the full plot of Avengers: Doomsday has been quietly teased through these leaked moments. Whether the original lineup can hold together against the Incursions—and Doom—will be revealed when the film finally hits theaters.

Image: Marvel Studios