Avengers: Doomsday Rumor Reveals Final Act Cameos, Second Post-Credits Scene, And A Big Twist - Spoilers

Avengers: Doomsday Rumor Reveals Final Act Cameos, Second Post-Credits Scene, And A Big Twist - Spoilers

While we'd recommend taking this latest leak with a pinch of salt, a supposed Avengers: Doomsday plot breakdown reveals some big cameos, a shocking death, and both post-credits scenes.

By JoshWilding - Sep 04, 2026 11:09 AM EST
Filed Under: Avengers: Doomsday

As Avengers: Doomsday nears, more potential details about what fans can expect from the movie are circulating on social media. As always, whether they're real or fake will be determined this December, but there's often some truth to these leaks. 

Another possible plot breakdown is receiving a lot of attention on social media today, as it reveals several new details about Avengers: Doomsday's final act, a major character death, and even the post-credits scenes.

It's said that the climactic battle takes place in Latveria, with the Multiverse's Mightiest Heroes assembling to battle Doctor Doom's army of Doombots. Deadpool reportedly shows up with a team that includes Tom Holland's Spider-Man and Captain Marvel, only for Doom to unleash his own allies, including a Hulk Variant who squares off with The Thing.

While Avengers: Doomsday concludes with the end of the Multiverse, there is a huge death prior to that: Bucky Barnes, who Doom kills in cold blood. 

The movie will also tease what to expect from Battleworld, with Sue Storm, Franklin Richards, and Valeria Richards now Victor Von Doom's family.

Namor, the Thor Corps, and Steve Rogers—transformed into "Captain HYDRA" by Doom—will all serve the villain, who sits on his throne while looking out at the remains of Avengers Tower and the Baxter Building (lending some weight to theories that The Void could be tied to the new world Doom creates). 

As for Avengers: Doomsday's post-credits scenes, one reveals that Wolverine and Tobey Maguire's Spider-Man are still alive with their pre-Battleworld memories intact. The other features the Scarlet Witch, who reportedly appears alongside "other heroes." 

It also sounds like Elizabeth Olsen is on her way to the UK for Avengers: Secret Wars...

In Avengers: Doomsday, beloved heroes from three distinct universes will be set on a deadly collision course and face an existential threat unlike anything they’ve ever encountered.

Avengers: Doomsday stars Chris Evans, Chris Hemsworth, Anthony Mackie, Winston Duke, Tom Hiddleston, Sebastian Stan, Letitia Wright, Paul Rudd, and Robert Downey Jr. Wyatt Russell, Simu Liu, Tenoch Huerta Mejia, Mabel Cadena, Florence Pugh, Danny Ramirez, David Harbour, Hannah John-Kamen, Lewis Pullman, India Rose Hemsworth, and Wesley Holloway all make their Avengers franchise debuts.

The Fantastic Four: First Steps leads Pedro Pascal, Vanessa Kirby, Ebon Moss-Bachrach, and Joseph Quinn join them, along with X-Men franchise stars Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, and James Marsden, with Deadpool & Wolverine star Channing Tatum. 

The Russo Brothers direct Avengers: Doomsday and Avengers: Secret Wars from a screenplay by Stephen McFeely, Chris McKenna and Erik Sommers, and Michael Waldron. Kevin Feige, Louis D'Esposito, and Jonathan Schwartz produce the movie, with Callum McDougall serving as executive producer.

Avengers: Doomsday arrives in theaters on December 18.

About The Author:
JoshWilding
Member Since 3/13/2009
A lifelong comic book fan who grew up on Spider-Man: The Animated Series in the '90s, Josh Wilding has been contributing to ComicBookMovie.com since 2009.

While he's also written for websites like Batman-News, HeyUGuys, and WhatCulture, Josh is CBM's Rotten Tomatoes-approved critic and the site's #1 contributor with nearly two decades of experience covering film and TV news (including interviews with Tom Holland, Chris Pratt, Gary Oldman, Halle Berry, Jon Bernthal, Tom Welling, and hundreds more).

Based in the UK with his wife, Josh is also an avid WWE and Formula 1 fan and writes about those passions on CBM's sister sites, TheRingReport.com and FullThrottleHQ.com. Favourite superhero? Spider-Man. Favourite pro wrestler? CM Punk. Favourite F1 driver? Max Verstappen.
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Irregular
Irregular - 9/4/2026, 11:52 AM
Steve is probably going to have the Captain Hydra outfit...but maybe called something like Captain Latveria or some BS...IDK...
WhatIfRickJames
WhatIfRickJames - 9/4/2026, 11:52 AM
Bucky dies for the third time, awesome
tvor03
tvor03 - 9/4/2026, 12:09 PM
@WhatIfRickJames - if rumors are true, we’re also about to see Loki die for the fourth time. And if Professor X dies, as it seems most everyone is about to be killed, it’ll be the fifth time for him.
TheMemphisBlues
TheMemphisBlues - 9/4/2026, 11:54 AM
My secretions can't handle it
CerealKiller1
CerealKiller1 - 9/4/2026, 12:10 PM
Did we not get every bit of information in this article, in previous articles?
blacksocksdaily
blacksocksdaily - 9/4/2026, 12:11 PM
I'm still optimistic about this movie, but I am not at all excited about the "evil versions of familiar heroes" if that ends up being true. Lazy & dumb
Scarilian
Scarilian - 9/4/2026, 12:18 PM
@blacksocksdaily -

It's all stemming from a place of utter hatred and contempt for the audience. The idea is they want the actors tied to characters you love to be brought back, belittled, vilified and then defeated by the new characters that nobody actually connected to in order to double down on the slop from Phase 4, 5 and 6.
Scarilian
Scarilian - 9/4/2026, 12:15 PM
I like how Paul rudd's Ant-Man permanently dies in Avengers: Doomsday, but nobody gives a single frick about his character after Ant-Man 3: Quantumania so none of the leakers are even bothering to mention it.

It's also worth noting all the Captain America stuff is because the writers hate the audience. It comes from the following mentality:

• You didn't like Sam Wilson Captain America and wanted it to go to Bucky instead, Steve's oldest friend who we set-up in Winter Soldier and Civil War to take up the mantle? Well frick you we're going to kill off Bucky Barnes and pretend its to unite the heroes when the heroes already have enough reasons to unite.

• You hated the nonsense ending we gave Steve Rodgers in Endgame? Well frick you he's going to have his son murdered in-front of him and he's responsible for the end of the multiverse because he's a selfish prick, lets have the entire movie be about mocking, insulting and belittling him and then ripping away everything he loves.

• We need to bring back previous actors so that people will watch our movie? Well frick you, here is Chris Evans back but he's not going to suit up in Avengers: Doomsday and when he eventually does suit up it's going to be as Captain Hydra one of the most disliked plot elements in history that we parodied in Endgame.
TheVisionary25
TheVisionary25 - 9/4/2026, 12:21 PM
I feel like this sounds more like fan fiction (for the most part) then other leaks…

Also why would this Victor who seems to have had a cordial relationship with Reed & The FF before as Sue said in the last trailer , he lost everything take on the formers family as his own in Battleworld when he could perhaps just “resurrect” or take them from a reality where they are still alive?.

I get that it would be “comic accurate” but there it made sense too given Victor has a long standing grudge & rivalry against Reed for a long time but in this take , it seems like again as Sue states , he was a decent person who is implied to have had a good relationship with the team before he lost his family and was presumably left disfigured/scared from the same situation which made him reclusive and broken until he comes back into their lives with some mysterious agenda in Doomsday so I don’t think him making Sue into his wife for example would work here given he doesn’t have any real animosity towards Reed unless we find out he was unintentionally involved somehow but Victor still blames him to some degree.

However I could see Namor serving Doom given we see them turn their weapons on Shuri and others in the trailer since he may have promised them a place in his new world and they feel he’s the only way they can be saved!!.

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