How Avengers: Doomsday Will Change Everything We Thought We Knew About Avengers: Endgame

How Avengers: Doomsday Will Change Everything We Thought We Knew About Avengers: Endgame

The Russo Brothers have teased that MCU fans may have missed some crucial clues hidden in Avengers: Endgame that will pay off in Avengers: Doomsday when the movie arrives in theaters this December.

By JoshWilding - Oct 03, 2026 10:10 AM EST
Filed Under: Avengers: Doomsday
Source: CBR

In this December's Avengers: Doomsday, Robert Downey Jr. returns to the MCU as Doctor Doom. The actor's history with Iron Man led to immediate speculation about there being a link between the two characters, but as of now, that doesn't seem to be the case.

Avengers: Endgame recently returned to theaters for its "Encore," adding a new ending and post-credits scenes to set up Avengers: Doomsday. We've already explained how those link up, but the connections may go even deeper than we realised. 

In a recent interview with CBR, the Russo Brothers confirmed that the 2019 blockbuster holds additional clues about how they plan to wrap up the Multiverse Saga.

Avengers: Doomsday wasn't planned when Avengers: Endgame was released, but the filmmakers have found organic connections between the two movies (lines like "you mess with time, it tends to mess back" set Doom's mission up perfectly). 

Asked whether Encore's post-credits scene mentioning that 3000 Incursions was a nod to Tony Stark's iconic "I love you 3000 line," Joe Russo replied, "I mean, could be? There are a lot of really experienced brains working on Doomsday, and we try to think through everything. We love Easter eggs, and we love connectivity."

"So, I will say that there are... You're definitely lighting on a concept, which is outside of the new footage," he teased. "There are other clues in Endgame that will lead you to Doomsday."

Despite movies and TV shows like Spider-Man: No Way Home, Loki, and Doctor Strange in the Multiverse of Madness dealing with the Multiverse, Avengers: Doomsday is being billed as a direct sequel to Avengers: Endgame. Marvel Studios doesn't want audiences to feel like they have to do homework to enjoy the movie, so that might be a smart approach, even if it means sacrificing certain subplots and characters. 

The Marvels, for example, will seemingly fall by the wayside, as will America Chavez, a character with the ability to travel between realities. 

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, plus Deadpool & Wolverine star Channing Tatum. 

Avengers: Doomsday is set to be released on December 18.

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KennKathleen
KennKathleen - 10/3/2026, 10:28 AM
Feige has to actually put up this round. This two-parter will be exactly what could take MARVEL to new heights.

I want to see the best for this franchise.

If they make the mature step with higher quality storytelling, this will go in a better direction.

If they hold on to spotlighting feminist, gender-fliud agendas, with cheesy/cringe humor, they will continue to decline.

Long story short- MAKE THE NEXT TWO AVENGERS STORIES GREAT!!!
DocSpock
DocSpock - 10/3/2026, 11:08 AM
@KennKathleen -

I agree completely. I’d like to forget garbage like The Marvels, Secret Invasion, etc.
Nonameforme
Nonameforme - 10/3/2026, 10:36 AM
This movie is not going to be good
dragon316
dragon316 - 10/3/2026, 11:38 AM
@Nonameforme - I want it be goood I’m not as excited for it as I was for end game only reason my cousin is excited for it Dr doom is his favorite character if not for him he wouldn’t be watching it
dragon316
dragon316 - 10/3/2026, 11:39 AM
@Nonameforme - my cousin also says I agree with doom square checker chest pattern on his costume look like samurai
BrainySleep
BrainySleep - 10/3/2026, 10:42 AM
This movie is going to be good
Malatrova15
Malatrova15 - 10/3/2026, 10:49 AM
This movie is not going bevause Goodie Good
Oberlin4Prez
Oberlin4Prez - 10/3/2026, 10:51 AM
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vectorsigma
vectorsigma - 10/3/2026, 11:00 AM
This movie will be so bad it will be frontloaded. The reason they are not shooting SW yet is they want to see the numbers first
Rpendo
Rpendo - 10/3/2026, 11:59 AM
@vectorsigma - “ The reason they are not shooting SW yet is they want to see the numbers first”

That’s the dumbest thing I’ve read here in a while.
vectorsigma
vectorsigma - 10/3/2026, 12:14 PM
@Rpendo - are they shooting now? Lolz 😂
Rpendo
Rpendo - 10/3/2026, 1:20 PM
@vectorsigma - For a movie likely budgeted in the hundreds of millions and shooting in weeks, the sets are being built, contracts with unions and contractors have been signed, the contracts with the actors/talent agencies have been signed, animatics and sfx are being laid out and worked on, fight scenes are being choreographed, costumes designed and fitted, and god knows what else.

What, you think Doomsday, which has already sold a ridiculous amount of tickets in presales and will likely, at worst, gross well over 1.5 billion dollars and sell hundreds of millions in toys/merch and already has locked in somewhere between 150 and 200 million dollars in product tie ins, will fail so miserably that despite pre-production being very well underway, Disney will…halt production?

Okay, bud.

‘Lolz’
CreateNowSlpL8r
CreateNowSlpL8r - 10/3/2026, 12:29 PM
Thanos snapped away phases 4 and 5.


Nasty work by the Mad Titan.
ObserverIO
ObserverIO - 10/3/2026, 1:16 PM
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Batmangina
Batmangina - 10/3/2026, 2:00 PM
This continues to devolve.

They will cheapen everything they've done in order to keep producing 'content' trying to capture market share they no longer deserve.

[frick] them.

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MMFRESHSW2
MMFRESHSW2 - 10/3/2026, 3:08 PM
the upside down A for victor & the J5 of witches ....whats there 2 tell its a comicbook movie just wait

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