How about black characters that, you know, aren't American? I heard there's this entire continent where there are many of them living there, so many that the continent's Olympic Ring (when was that logo designed again for Asia = Yellow, Africa = Black, America = Red to be considered politically correct? whatever) was colored after their "race".
But yeah I forgot, the rest of the world doesn't care about that place, unless there is oil to be gained.
Seriously, stories about modern Americans (be they black white or whatever_, Japanese and Europeans are so boring (it's hard to care for characters who live in the most prosperous places in the world), if you are going to ask for more black characters, at least ask for more black characters with a MUCH more interesting background.
Mind you, I REALLY don't want to see mainstream game studios tackle anything as serious as the situation in Africa. I think they lack the mental maturity for something like that. An indie game though would be nice