Variety reports Larson is the studio's first choice, but it is unclear where negotiations stand at the moment. As talks are early, it is possible a deal may not be struck, but Larson is also said to be leaning toward playing the role.
Presently, the film is still without a director, with Marvel looking for a women to take the helm as the project represents the first solo outing for a female hero in the studio's portfolio. And as Variety suggests, casting the part early may indicate she will appear in one of the earlier films in the schedule; not unlike the introductions of Chadwick Boseman's Black Panther or Tom Holland's Spider-Man in Captain America: Civil War.
If that is the case, the character could be introduced as early as Spider-Man: Homecoming or as late as Ant-Man & The Wasp, the film currently scheduled to be released just prior to Captain Marvel. Although, many have guessed the character could be introduced in the first part of Avengers: Infinity War.
Captain Marvel is scheduled for release on March 8th, 2019.