https://www.cnet.com/news/captain-marvel-super-bowl-trailer-shows-the-boys-how-its-done/

In the upcoming movie, Captain Marvel will get in the middle of a fight between two alien races -- the Kree and the shape-shifting Skrulls. But how that will tie into her role in Avengers: Endgame is yet to be revealed. 

The new trailer also has more footage of Samuel L. Jackson as pre-eyepatch Nick Fury, and Jude Law as Walter Lawson/Mar-Vell.