stub -- to be worked on soon.
general premise: fewer quests, but bigger more higher quality quests (think epic quests, etc)
no quest hubs. quests are not primarily how you gain exp and level (see the Achievement system).
but that is not to say that quests won't be important to the game. The better items, etc. will come from finishing quests.
I wouldn't complain if there was enough of these to at least give some meaningful experience. One thing I could think of is quests that leads people to open dungeons and... more