Got back to the game some weeks ago and I remember from launch some suggestions to make your buffs/debuffs on the target bigger or somewhat more visible, would be really nice to see this in game.

Would also love to see improvements to the tab targeting system, prioritizing rotating over in combat minions and minions closer to you or your current target would be awesome as sometimes it jumps to someone really far away or to someone that is not even in combat with you when there is a really good target just by the side of your current target that is actually in combat with your group.

More player status options would also be nice with different restriction levels other then just Busy and Not Busy, being almost forced to be Busy to avoid gold sellers spam and being locked out to all other kind of whispers and even not being able to interact with ready checks inside dungeons is really annoying. Maybe even a "ignore whispers from players lower then X level" would be really cool IMO.