Only Reset type crazies are idle enough to need or even think about representation in a Smash Bros game. Even if they wanted to add a black character, pickings that make sense are slim. OP is delusional with his suggestions. They pretty much boil down to adding a black character for the sake of it, which they'd probably turn around and have another problem with how he or she was handled.
Having said that, the perfect character that does make sense to Nintendo's history is the one and only Mike Tyson. Nintendo needs to get him back on board.