The Avengers: Endgame trailer focused primarily on the original six Avengers, with each of them getting at least a scene or two. After the Decimation that took place in Avengers: Infinity War, the remaining heroes are clearly reeling: Iron Man (Robert Downey Jr.) is on his last breath in space; Captain America (Chris Evans) is shown crying; Thor (Chris Hemsworth) is isolated and defeated; Bruce Banner (Mark Ruffalo) is struggling to account for those they lost; Black Widow (Scarlett Johansson) struggles to put into words what Thanos did; and Hakeye (Jeremy Renner) has ditched his usual bow and arrow for a new sword to become Ronin. As bad as things appear though, the arrival of Ant-Man at the end of the trailer added some levity and even a potential solution to the problem at hand.
Ant-Man and Nebula are the only characters who weren’t original heroes to get proper screen time in the trailer, meaning there were several notable characters absent from the Avengers 4 trailer. And none was more surprising than the lack of an appearance by Carol Danvers aka Captain Marvel (Brie Larson); she was positioned in Avengers: Infinity War’s post-credits scene as the universe’s potential savior, but any resolution to Nick Fury’s page was held back. Since we know she is a major part of Avengers: Endgame in some form, though, here are a few possible ways Captain Marvel could be introduced in the movie.
One of the most likely ways that Avengers 4 could introduce Captain Marvel is through a scene that takes up the first minute of the teaser. The Endgame trailer starts with Tony Stark stranded in space (presumably with Nebula) aboard the Benatar, the Guardians’ ship. Tony is trying to send a message to Pepper Potts telling her that he’s out of food and water and will soon be out of oxygen; he has seemingly accepted his ultimate fate will be death, as he says, “Part of the journey is the end.” But, as dire as the circumstances appear to be, he’ll be surely saved: this scene also looks to be from the opening of the film and it is highly unlikely that Marvel Studios would kill their biggest star so early on and in such a non-heroic way. Tony is in need of saving and could be how Captain Marvel comes into the picture.