I'm currently writing up a Pyromancer that isn't point-based, and that doesn't just steal from some magic system (OK, I lie, it uses Eldritch Essences, and you can get into things that Eldritch Blast would let you qualify for.)
Because I hate how repetitious it gets when all pyromaniacs are forced to play either something that just lights things on fire and has no flexibility, or they are vancian, and thus uninteresting to me.