Some of my Larger Project ideas tend to focus on demons and monster girls. I actually wanted to get to making a sequel to Lord of Dusk.
With a new cast of course. But since I enjoyed writing the first series so much.
Another one is a more serious Monster Girl series, one that is an action adventure (Still Erotica) rather than straight romance. Also closer to fantasy than urban fantasy.
I also wouldn't mind creating a Light-Novel, with illustrations in each chapter etc. Though that is far out of my price range at the moment.