There's really a ludicrous amount of stuff on the todo list. I don't know what'll be in v3, since my development isn't exactly efficiently organized, but I think I said elsewhere that Carceri will definitely be in because it's really about damn time I finished that. Testing is a long, long way off yet though. QP is unlikely to evolve significantly for several months, although I'll still be doing minor releases as horrific bugs pop up.
I'll never turn down good donations, and suggestions are, uh, always welcome, although I really should stop getting distracted with new ideas and just finish what I'm supposed to be doing.