[Web Warlock]

Supplements:

Well a book for each school providing something unique about it. So new backgrounds, new cliques, and for crunch, new monsters and new spells.

So something like an "all evil" school, like the legends of the Scholomance, include a lot of non-human students (vampires for the Twilight crowd), but present them as the main rivals. Like how in High School your school was rivals with another school (for me in Jacksonville, IL it was Quincy, IL).
So the Willow Mistt school has a rival school.

Each school book could include some adventures too.

Or even a "year book" like book with new guest stars and a "years" worth of adventures.

A character journal would be great. Incluse spots for things needed for the game, but also things that give a character depth, like favorite course in school, least favorite teacher, zodiac sign, crushes. stuff like that.

Tim