Hmmm... good question. With the original Tokyo Show concept bike, the "B" in B-King allegedly stood for Boost since it was supercharged. With the production version being normally aspirated, it can't stand for that anymore.
You just know if they keep the B-King name there'll be all sorts of Burger King jokes. I'm wondering if they don't end up just calling it a GSR1300 and leave it at that.