You know what grinds my gears? People saying “we can’t have a Carol Danvers movie unless they start with Mar-Vell and all the other Captains Marvel and the Kree etc etc zog zog zog.”
Now sure, they might be big fans of those characters and want to see more cosmic Marvel movies. That’s okay. But Carol does not require that much backstory and history. You know what Carol Danvers’ origin story is?
ALIEN WISHING MACHINE. That’s it, there you go, three words, involving a pre-established alien race. You could bring in Mar-Vell if you wanted, or you could leave him out entirely and go straight to Carol having adventures in space. (With Rhodey if they want a familiar character along.)
In Pursuit of Flight is the second movie. Time travel, Banshee Squadron, maybe Cap and Bucky cameo.
The Earth’s Mightiest Heroes episode that introduces her and Mar-Vell is exactly how a movie with those two would go. At this point it’d be harder NOT to set them up.