I've been away from this thread for a while -- I guess everyone else has too? Did discussion move somewhere else or has there just been little to say?
I know that personally, I'm eagerly awaiting the updated Miraculous Arcs book. I plan to use that as the excuse to start another Chuubo's campaign, as it sort of bring the game into the "one and a halfth edition."
Aside from Horizon, Jenna's current project list of things that'll probably see the light of day is:
Book of Golden Hours (aka the big book of Miraculous Arcs)
Fortitude: the Far Roofs (waiting on Golden Hours)
Night-Bird's Feather (Chuubo novel, waiting on a revision pass)
Glitch (mostly written; an RPG about those Strategists who realise that for all that their acceptance among the Excrucians is sincere, well-intentioned, even necessary, it entraps them. Preview here)