Based on the duty finder queues, we are in a definite need of more players tanking. I think DRK will bring more players to into the tanking fold, and maybe more of them might enjoy it. Yeah, every one will go DRK in the beginning but things should really balance themselves out. Everyone who really enjoys tanking has probably leveled them both and can find the use in either class. Adding DRK just means another tool in the box.