A new article from Ravious (KillTenRats) has gone online; it's about the scout-hearts, which take the place of questhubs with a twist. A developer has added his thoughts on this, a nice read.
just a little note here: Hearts are NOT dynamic events, they are hubs where some people need help. You can do several different activities to fill those hearts, including dynamic events that happen in the area around those hearts. Those hearts are perfectly explained in the article above.
-) hearts are no quests
-) they are no dynamic events
-) they are hubs for activities
-) a filled heart turns the NPC into a karma-vendor
-) you don't gain karma from the hub-activities!
Read the article for nice examples and thoughts from a developer