Top 5 Questions About The First 'Avengers: Doomsday' Trailer, Answered

The first official Avengers: Doomsday (2026) teaser has arrived. Set to be the Marvel Cinematic Universe’s first Avengers movie in seven years, the film promises to be one of the franchise’s most epic crossovers yet. With the multiverse at their disposal, the Russo brothers not only have countless MCU characters to work with but will also be integrating 20th Century Fox’s X-Men characters into the movie.

Marvel unveiled much of Avengers: Doomsday’s cast in early 2025, raising excitement for the return of the X-Men, Fantastic Four, Thunderbolts, and MCU staples like Anthony Mackie’s Captain America and Chris Hemsworth’s Thor. One of the most significant casting announcements, though, came in the form of the first Avengers: Doomsday teaser, which teases the return of the MCU’s original Captain America/Steve Rogers (Chris Evans). As exciting as Cap’s return is, the teaser no doubt left you with some questions. Fortunately, we have the answers to the top five biggest questions about the Avengers: Doomsday trailer.

Who Is Captain America’s Baby?

A large portion of Avengers: Doomsday’s teaser features Rogers and a surprise character: a baby. It captures a serene scene of Rogers holding an infant in his arms, presumably his and Peggy’s (Hayley Atwell) child. In Avengers: Endgame (2019), Rogers decided to stay in the past and live out his life with Peggy.

Although it’s a bit farther back, you might also recall that Captain America: The Winter Soldier (2014) mentioned Peggy married and had two children after Cap disappeared for 70 years. Avengers: Endgame’s writers, Christopher Markus and Stephen McFeely, confirm she actually married Rogers from the main timeline after he went back in time, and those two children are her children with Rogers. Canonically, Rogers’ and Peggy’s children are already in the MCU.

If that baby is Steve and Peggy’s child, it would align with Marvel Comics, in which Captain America had several children across several different timelines. One of the most well-known children is James Rogers, from Earth-555326, the son of Rogers and Black Widow, who joined the Next Avengers. He’s the star of the animated movie featuring the superhero team, Next Avengers: Heroes of Tomorrow (2008). The baby in Avengers: Doomsday could also be Sharon Rogers, who was actually Peggy and Rogers’s daughter in Marvel Comics.

There’s also the slight chance that the infant isn’t Peggy and Rogers’ child. After all, The Fantastic Four: First Steps (2025) just introduced another baby to the MCU, Franklin Richards (Ada Scott). Franklin is extremely powerful and can bend reality, making it possible that he’s the baby in the teaser. One particularly wild fan theory posits that the baby is The Beyonder, who once transformed itself into a mortal infant in Marvel Comics. Given The Beyonder’s connection to Secret Wars, and the next Avengers movie being Avengers: Secret Wars (2027), it’s a far-fetched but mildly possible idea.

Whose House Is That In The ‘Avengers: Doomsday’ Trailer?

Eagle-eyed viewers may also have noticed that the house Rogers approaches in the Avengers: Doomsday trailer is vaguely familiar. We have seen that exact house before in Avengers: Endgame. After Rogers stays in the past in Endgame, viewers get a brief glimpse of his life in that era as the camera pans over the charming little house, where Peggy and Rogers slow-dance through the window. There’s no mistaking the house in Avengers: Doomsday is the same one from Avengers: Endgame, which backs up the idea that this is the same Rogers of Earth-616 and not a variant of the character.

Have We Seen That Motorcycle Before?

Given that we’ve seen that house before in Avengers: Doomsday, you may be wondering if you’ve seen that motorcycle, too. After all, this isn’t the first time we’ve seen Captain America on a bike. In Captain America: The First Avenger (2011), Rogers chose a Harley-Davidson WLM (aka The Liberator) as his mode of military transport during World War II. After his 70-year absence, he continued to use various Harley-Davidson models. However, his bike in Avengers: Doomsday is not one we’ve seen before. It appears he traded in his Harley for a Triumph, a popular British motorcycle brand. 

The Triumph may just be for historical accuracy, given its popularity in the 1950s, the period Rogers returned to in Avengers: Endgame. Otherwise, it may indicate a change in taste, illustrating how Rogers has changed since going back in time and starting a new life.

Is Captain America’s Motorcycle Helmet A Wild Easter Egg?

In the Avengers: Doomsday teaser, we also get a glimpse of a helmet, which Rogers hangs on his motorcycle before entering his and Peggy’s home. It’s a 1950s-style dark-blue motorcycle helmet with goggles. At first glance, it looks most similar to his helmet in Captain America: The First Avenger, suggesting it could be the latest take on his mask. At the same time, the old-fashioned design may also evoke Rogers’ helmet in Captain America (1979). 

In the 1979 movie, Captain America boasted one of the cheapest, most cheesy-looking costumes, complete with a big, bulky motorcycle helmet with wings and an “A” painted on it. We all know Marvel loves its Easter Eggs, and can’t help but wonder if the old-fashioned helmet is a cheeky reference to Cap’s most infamous costume.

What Does The ‘Avengers: Doomsday’ Countdown Mean?

Avengers: Doomsday’s teaser ends with a countdown. It is the countdown to the film’s release, starting at 11 months, 14 days, and 15 hours, and slowly ticking down the seconds. The countdown might have an additional meaning, though. Given the film’s name and its countdown, it reminded me of the Doomsday Clock, which tracks how close we are to causing a human-made global catastrophe. Perhaps the Avengers: Doomsday countdown isn’t just a countdown to the movie, but a reference to an in-universe countdown toward a catastrophic event, such as a time incursion.