True, but the first Player's guide is only a month away. I believe they have it slated, Late January/early Feburary. However it's for
Wizards, Bards and Sorcerers.
Yes, but not so much you couldn't use it in another campaign. You'd have to ask Pirate Cat or Mike Gill to fill you in. (They did the sections on sorcerers and bards respectively.) I did some work on the spells in the book too.