The crafter PQ sounds like an interesting idea. I immediately think of the Firemyst Gully mission, where you contribute to a raid force looking to take down an enemy. Let's say this PQ is to help the Coldain gear up for the Storm Gorge PQ. You have until about 5-10 minutes prior to the start to contribute x amount of items. Reaching certain goals provides certain bonuses. Once the adventurer PQ is done, you get to collect a reward, based on how things went.