I like the base idea, but rather than doing mundane things for crazy rewards (like the 100k lottery for Haukke) they should do something crazy hard instead. For example doing T1-T5 in one sitting, on one timer. 20 min (or whatever) per turn, each turn cleared is +20 min to total. Final boss might require more than 20 min so gotta get through some of the turns quick

I do agree vanity stuff (bound/ex) is a good idea- like a minion from every single dungeon. Basically anything non-gear.

However, I think the average player has a lot to do, basically being about 1 patch behind the whole way.