As much as I enjoy engaging gameplay, the last thing I want is a bump to dungeon complexity. Not for lack of an interest in having more to do as a tank or anything like that, but simply because adding complexity to something that the roulettes are going to shove me into with a bunch of random, very likely new, players greatly increases my odds of having to requeue through no fault of my own. I've even taken to playing paladin, something I used to outright hate, over my preferred tanking job simply to be able to avoid wipes when the healers inevitably kill themselves by standing in the very clearly marked bad on the ground.

Now if we're talking optional stuff? Sure, throw it at me. I'd love to see the game gain something similar to WoW's M+ content, where you take on more challenging dungeons and are rewarded with gear appropriate to the difficulty of the task you faced.