I have a few games I'm trying to plan for my group, but I'm not the usual GM and also really lazy/nitpicky when it comes to creating stuff so it takes forever before I feel comfortable to run a scenario. My current plans are, however:
1. Accursed: I have starter session planned out, so we'll see how they like it and go from there.
2. Eclipse Phase: I had the awesome/terrible idea of running DOOM-themed game for my group with a twist, they start with wiped memories and inactive muses, i.e. blank character sheets that as they make rolls I'll give them their stats. We've done something similar for a WHFRP game so I'm interested to see how that goes.
3. DG/CoC: I have had mini campaign planned for a long-ass time now that's a sequel to an older game we've done. The motivation comes-and-goes on this one.
4. CoC: Another Cthulhu game I've had an idea for is a more survival horror type deal. Think "The Thing" meets "Resident Evil: Revelations," but on an icebreaker instead of a cruise ship.
5. Better Angels: Basically once Caleb's No Soul Left Behind comes out I want to run it for my group, because we're all pretty horrible and that's great. Play-testing!
6. Night's Black Agents/GUMSHOE: I was inspired listening to the Tribes of Tokyo to do a NBA/GUMSHOE mini-campaign that involves a certain metal endoskeleton with living tissue over it.
Aside from those our regular GM and I have been talking about playing a more regular EP campaign, a Numenera campaign, trying Masks of Nyarlathotep in either CoC or Trail of Cthulhu, some Wild Talents, checking out Night's Black Agents, and doing a dual-sided FFG Star Wars campaign where we switch off DMing, one DM does a group of smugglers having cool smuggler adventures and the other DM runs a group of bounty hunters chasing after the smugglers and getting into their own misadventures. My GM has also had a few ideas for some of the Warhammer 40k games that we might try. If I remember anything else or actually do any of these I'll be sure to edit this.