I'm interested in playing the new classes but my WAR will always be my priority and it'll be what I get to 70 first. Heck, I may even level both DRK and PLD to 70 before starting the new classes just to avoid the huge DPS queues for the first few months. Most of the tanks I know in game feel the same so I'm not worried about it. We may lose a few tanks to the deeps, deeps may lose a few to tanks for the queue times; overall I expect it to stay similar to what it was for HW.