Kevin Feige said:
ďI think Bond is a good example. Letís put it this way: I hope Downey makes a lot of movies for us as Stark. If and when he doesnít, and Iím still here making these movies, we donít take him to Afghanistan and have him wounded again. I think we James Bond it.Ē
As much as I hope that Downey sticks around for Avengers 2
and way beyond, I think that given the inter-connected nature of the Marvel Cinematic Universe, re-casting would be the better choice than a re-boot. We've already survived re-casting of Rhodey and Bruce Banner.