Newest Captain America Rumor for Avengers: Doomsday Could Finally Solve the Mystery of the Missing Fantastic Four Scene
A shock twist has detonated the status quo, leaving insiders reeling and everyone else demanding answers.
Another day, another Avengers: Doomsday rumor, and this one tries to stitch together Captain America, the Fantastic Four, and a baby. Yes, a baby. It is very nerdy, but it actually tracks if you follow the MCU's multiverse logic.
The latest theory: Steve and Peggy are living in Earth-828
A new rumor floating around (via CBM) says Steve Rogers and Peggy Carter, who finally got their dance in Endgame, are not in the main MCU timeline anymore. Instead, they supposedly settled down in Earth-828 — the universe where Fantastic Four: First Steps takes place. If true, that connects Cap directly to Marvel's first family in a way that explains a few things fans have been obsessing over.
Why this matters (and why fans think it could be real)
Two big reasons this rumor has legs:
- There was chatter about a Chris Evans moment in First Steps that never surfaced. If Steve and Peggy are 828 residents, that rumored scene not making it into the release cut suddenly makes sense.
- Some fans believe Steve's Endgame mission — returning the Infinity Stones and choosing a life with Peggy — may have spun off or stabilized Earth-828 in the first place. In other words, Steve could be the 'anchor being' for that universe, the person whose presence holds that reality together.
About that baby in the Doomsday tease
The Cap-centric tease for Doomsday shows Steve and Peggy with a baby. That set off a days-long spiral about whether Steve's Civil War kiss with Sharon Carter makes him the MCU's most awkward family reunion. If Steve and Peggy are in an alternate universe like 828, that knot untangles fast — Sharon either isn't related to Peggy in that reality or doesn't exist the same way, which neatly sidesteps the weirdness. Clean, if true.
Fantastic Four are already threaded into Doomsday
Separate from the Steve/Peggy rumor, Marvel has been quietly (and not-so-quietly) teeing up the Fantastic Four as key players in Doomsday:
The Doomsday cast reveal made it clear the newly introduced FF aren't just cameo fodder. The Thunderbolts* credits scene set up a meet-cute between the team and the New Avengers. A Wakanda-set Doomsday trailer showed The Thing introducing himself to Shuri and M'Baku. And First Steps ended by dropping Doctor Doom into the picture. Put all that together, and Marvel's first family looks central to whatever Doomsday is cooking.
So... how much of this is real?
Right now, none of the Steve-and-Peggy-in-828 stuff is confirmed. Treat it like a fun thought experiment until Marvel says otherwise. That said, the sheer volume of theories is probably a good sign for audience interest — especially after recent stumbles like The Marvels.
When we actually find out
Avengers: Doomsday is set to hit theaters on December 18, 2026. We are still a ways out, and it is not clear when the Russo Brothers will start sharing real plot details or drop a full trailer. Until then, the multiverse whiteboard stays open.
Side note for the streaming crowd: the MCU's home base is Disney+. Plans start at $11.99 a month with ads, $18.99 without ads, or $189.99 for a year (about 16% off).