[Greymain]

What is really needed is for quests to come and go. This could range from a quest that disappears once a group has completed on an annual rotation, A quest that is only available when the moon is full. Quests attached to Fairs or other annual, monthly or weekly events.

Add into the mix level, sphere and flag restricted quests also that quest drops may be items that can be combined with others to craft weapons and armour.

Providing Devs have time and resources to make it I see almost unlimited variety.