What's the next big city for Texas BBQ?

I could say it's arguable Austin is the #1 destination in the country for Texas BBQ, but it's not arguable. Austin is the hottest town in the world of Texas BBQ. No city in the country has more buzz about Texas BBQ. But which town, if any, is going to step up as a contender for the title of hottest ticket in Texas BBQ? Is it Houston? Is it Dallas? Is it...wait for it...New York City?!?! Could it be London? Weigh in!