I really like this idea of Charlize Theron as Ms Marvel (or just call her Captain Marvel) in a future Avengers film:
Update: The image is from Prometheus and altered using GIMP.
I think she would fit in pretty well with the cosmic story lines Disney/Marvel is doing and Carol Danver's brittle strength would be dramatically interesting. I'd like to see her as an Air Force captain in charge of dissecting some Kree tech found in orbit, with Hank Pym as a researcher. She gets suped up for Avengers 2: Avenged Harder, and Pym's research leads to the Wasp and Ultron in a later Avengers film.