...Tank job class in the future?

Just a random thought I'd ask since his ability to adapt and skillful redirect, block and outright cancel out his opponent's attacks and counter with a powerful comeback of his own due to his ability to adapt was always fun to watch. But what if that was made into a job class; specially a Tank? It's style is different enough from Monk's and even without Ran'jit's Gukumatz it'd be a pretty powerful and fun type of Tank.