I think once you finish all the main quests, you pretty much have Townhall Quests and Rumor Bosses, other than re-grinding dungeons. Maybe it would be nice if once your character reaches level 20 or so, Townhall Quests and Rumor bosses are ramped up to be more of a challenge. It's not much of a challenge for a level 24 character to kill a trio of Trolls or to hunt down a Goblin Beastmaster. But throw us more dragons and liches and it might be more interesting.