Right now Drk and Pld excel in certain situations but for the most part a Warrior has an answer for every situation. So if they buff the other two and allow all the tank classes to perform with parity among each other then I'm all for it.
But I really feel Pld is hurting the most right now. A lot of the endgame content is more magic focused. And when we get some physical content Drk may or may not suffer but Warrior will be fine.