I don't thinks retconning a white, straight, male character and making him black, gay, a women, etc is the right approach because that character's identity is still defined in terms of the straight, white, masculine dominance of society. I want a character who's shaped by his/her experiences and identity as a minority. It also just shows that these identities need a clutch in order to become popular. Even if Peter Parker becomes black, he still reflects the attitides of being developed as a white character. Turning a straight character gay is a little different, because it is entirely possible to be in the closet. I wouldn't be surprised if Iceman was in the closet, for example.