I hope to god we get cool rare drops that bring us on epic quest lines with amazing rewards at the end... Like imagine Killing monster after monster and finding a tattered headband. You start by finding what that headband was part of, you learn of the ancient summoners... You then travel around and eventually after a long series of events you learn how to be a summoner.
Kinda like a new job type quest, but I was sitting here thinking of my favorite moments in MMOs, and it was when I played Vanguard I was exploring an island and accidentally started the Unicorn mount quest. Never looked it up, never was after it. I felt so accomplished not having to use a Wiki to do the quest, or find it, and it made it feel special to me when I finally got the mount after a week of questing.