Not sure if this is the best place to ask this, but what the heck. I'm plotting and planning for my upcoming Jade Regent game, and I'm going to have Koya Mvashti bring up the existence of Moonwing Bough and how she would like to visit the shrine if possible, since the caravan will be within a few days travel (even if it is somewhat dangerous).
I've already decided that, in the event everyone goes along with the idea and they successfully make it the shrine (sans the bulk of the caravan, left at the forest's edge) Koya will receive the shrine boon in the form of (somewhat) restored youth, shaving about 20 years off and making her more capable of making the upcoming journey.
I'm less certain what to do about the other NPC's Ameiko or Shalelu, and could use some general thoughts on possible boons for PCs in a general way.
I was pondering something like the Sarenraen boons from Legacy of Fire in the form of possible inherent bonuses to attributes or something similar.