Meh. IMO, "BRO" is part of the mainstream marketing appeal for the gaming site. If it's ever quoted on Bloomberg like Bitcoin is, then it can easily be changed at that time. Bittrex, Cryptsy and other exchanges are unregulated, so I doubt any coin has some kind of claim over the symbol anyway. It's trivial.
Yea, i also think BRO is best especially in gaming world because of marketing - its quite memorizing in a cool way. And it was choosen for a reason. That is why i dont feel its necessary to change it, at least not yet.