I am not sure if this has been mentioned as I haven’t had chance to read all 36 pages but wanted to throw the idea out there anyway.
But having timed runs a little similar to wow where you run dungeons and get rewards for running the dungeon is a bronze, silver or gold time.
Getting all the dungeons in a gold time unlocks rewards (cosmetic) & achievements.
Apologies again if this has already been mentioned.
From what I have read, the suggestions have been fantastic.