Brie Larson's Captain Marvel is next in line to make her Marvel Cinematic Universe debut in a self-titled solo movie dated for March 2019. After that, she will join up with Earth's Mightiest Heroes for some crossover fun in Avengers 4.
This was pretty much set in stone during Infinity War's post-credits sequence when Nick Fury paged the intergalactic heroine to request her help, before he disintegrated.
If that isn't enough confirmation of her presence in Avengers 4, Black Widow star Scarlett Johansson flat-out told Vanity Fair back in November last year that Larson is in the movie. She even described a scene her character shares with the Hulk.
"We have Brie Larson on this film. She’s here before shooting the stand-alone Captain Marvel movie so we get to watch her get her feet wet for real. She’s so great, but a really cute thing happened the other day where Hulk is standing next to her and Joe Russo told her to put her hand in front of Mark [Ruffalo]’s face to stop him, and she’s like, 'In front of his face?' And they explained, 'that’s where his chest is,' and she looks up and yells, 'I’m new! I’m new!' I’m like, 'damn, girl.' It’s very surreal for me to watch these new cast members come in and get their feet wet and breath new life into these characters who are so iconic."
Captain Marvel is sure to be one of the MCU's heaviest hitters, but it remains to be seen whether she will be any match for Thanos and his full set of Infinity Stones.