I was just thinking about the magic AU idea while driving to work today. And the mermaid one is still percolating, although I might have to wait until after I see the episode Echoes to make sure I'm not completely Jossed.
But mostly I need to make progress on at least three other writing projects (more Skew Lines, more CrissCross, and my Yuletide assignment, eek!) before I get into something new. Whew!