I doubt it and I also hope not.
The Russo Bros. have told us that Endgame focuses on the Original 6. The Avengers failed in Infinity War because they were fractured, overconfident, and some unwilling to sacrifice the one for the many ("sacrifice" being a key element to the movie). 1 player should not tip the scales (especially when she's no different than Scarlet Witch, who if you remember, actually destroyed an Infinity Stone).
I'd like to see some failure and humility from Carol Danvers prior to success. If she gets her ace handed to her from Thanos, and realizes that she's not the single answer, I will be rooting for her.