There is a little something that comes after in progress. Now, it might not be novel-length - I don't know yet - and it might not be soon. But... something is in the works.
The other major thing in the works is, of course, Innocence #4. At the start of the year I committed to three books this year - Over the Edge, Innocence #3 and Innocence #4, and I'm happy to say that I'm almost there. (Read: sometime in the next one to three months.)
I find it easier to write the whole book than the blurb, so that's still in progress, but basically it's Kim's story (spoilers for book #2 ahead.)
Book #4 is part prequel, part sequel. It contains the story of Kim (then Kimaya) and her coven becoming immortal, the hows and the whys and a bit more about who she was and what her life was like before. It also contains the story of now-dead Kim turning to her powerful friends for a possession spell to use on Innocence Cooper.
I'm also playing with a first draft I wrote earlier this year that might become a new series... but not for a while. And Innocence #5 needs some work. I'm not very good at the whole focusing-on-one-thing thing.