Hi, I have an idea where a player can have their trait build switch out. Reason why because players don’t like having their build switch out constantly from PVE to WVW. You can’t use this in combat and you have to pay a certain amount to have this ability. The trait build you made saves so, you can reuse it without having to put in trait pts again. I have a feeling this would make players more into this game, without being annoyed by having to go to their master to reset all the time. 
Dual spec
+1, I found that idea very good to be put in-game.