Is there some reason they couldn't work the Kree into the MCU? It seems to me that Carol's origin story would be a good way to bring them into the movies.
I just started watching Season 2 of Avengers: Earth's Mightiest Heroes, and I read the first issue of the new Capt. Marvel series earlier this year, and based off of those I would love a Capt./Ms. Marvel movie. Personally I'd prefer they call her Captain Marvel.
Both FOX and Marvel own the film rights to the Skrulls, so I imagine both can use the Kree.