Finished re-reading/catching up on Wild and Horned Hermit. I'm sad that next chapter is supposedly the last, though as others have stated, it could be a two-parter like the last one. Definitely a lot of Hell forshadowing (along with the last Three Faries of Light manga having a Hell-centered incident), so it's possible ZUN may actually be tying these to Touhou 17, which was mentioned to be about Hell. He's done a lot of 'after the fact' timeline filling with the print works so far, but not that much the print works having a direct plot impact on a future game.