A lot of people seem to be forgetting... DRK did drastically shorten leveling queues for a good while when it came out. I don't expect it to change much endgame but well, have fun with those really, really long leveling queues for while after the expac release... really hope you like FATEs.

(And, yes, there are plenty that only play DRK because they don't like the other tank jobs. So it does bring in new people long term...)