I don't think so. Some characters just wouldn't work if you change the race (a white Shaft, a Chinese Dirty Harry, a Jewish breakdancer, etc), and Bond has to be a classy white guy. Felix Leiter should stay black though, he adds a non-white character that doesn't generally die at the end of the movie.
Felix was the guy from the CIA in Casino Royale, for those desperately trying to figure out who I'm talking about.
Felix was the guy from the CIA in Casino Royale, for those desperately trying to figure out who I'm talking about.