First of all, I never get tired of your "woosh!" in your responses :)

And YES, the vagueness of that prophecy is DIVINE! 

Allow me to spout off some ideas. You don't have to agree with 'em, this is just initial stuff popping into my mind after reading that bit of awesome.

I must read up on the Tel'Teukiira: their "We'll do anything for our cause" intrigues me. I have a character who could play this role as one of them. Also, as a bit of backstory: I intended that young Maura was about to be recruited by a mysterious group (it could be these guys!) because her magic was pretty slick before things went Horribly Wrong(TM). They could have been keeping tabs on Jeron without his knowing due to reasons even he doesn't know about (mainly due to who his father is). Because Chamera is part of the Harpers, they could be keeping tabs on her as well because of Reasons (of your choosing). 

The Three Threats (dun dun duuuun). What could they be? Perhaps ourselves, darkness, and prefects are the three threats?

Ourselves: One or both of our characters could have some inner conflict that could prove to be a real threat, mwahaha. Jeron wants to learn how to use magic so that he could do some not-so-pleasant things with it, or so he believes. Whether or not he actually has it in him to do dastardly things is another matter. 

The Darkness: A more obvious threat? Monsters, baddies, evil-do'ers?

Prefects: Perhaps a betrayal of some sort is in the works. How much can we trust Pan, for instance? Bwahaha!

And yes, great that we have a bit of game time cushion to hash this out :D