in order for Tony Jaa to become the next Bruce Lee, he'd have to learn to speak english. as we all know, the american public is generally not going to give a shit about him otherwise.
But even then, I see him being the next Jackie Chan rather than the next Bruce Lee. Tony Jaa is fun and amazing to watch and does all his own crazy ass stunts, like Jackie Chan.
Bruce was the greatest because he innovated the art and was a great philosopher, professor, and practitioner of the art. He wasnt just a guy that jumped off of shit like Jackie and Tony.
Bruce is the fucking man. Jackie and Tony are just very very fun to watch.