Aside from the fact that it will properly introduce Carol Danvers AND Brie Larson into the MCU after her smaller Infinity War role, Captain Marvel represents an important moment for Marvel because it is the first female-fronted superhero movie in the history of the Marvel franchise.
Wonder Woman will have already paved the way for Captain Marvel with the release of Patty Jenkins’ DC adventure this summer, so getting Captain Marvel right is more important than getting it done quickly.
I think it is safe to say that fans will wait patiently to see a Captain Marvel film finally materialize in the Marvel Cinematic Universe.