Cannith Crafting was a hit.
Add a chance to get Reaper and Mythic Bonuses to random loot.
Would increase the general desire to run diverse Reaper quests.
Perhaps BtA, or if not would prove to be a boost to economy (AS or PP sink). Or make BtA.
As stands now, very few quest come to mind where I would plan to run a lot (or more importantly expect others to want to run) --Good Intentions for ring, Slavers for a few item, a few raid items could be hot but peoples desire to run Reaper Raids is not something I'm expecting.
We have the makings of something to entice people to run and just need to close the gap.