I'm mulling it over. If it gets enough interest I'll take it more seriously.... for now, the basic idea is something akin to Game of Thrones in story-structure. Players would have a number of roles at their disposal; the game would be loosely (but decisively) moderated by me. The general idea is that in addition to making regular posts and behaving like a typical RPG thread, you'd be able to make 'moves' as well -- like, for instance, laying traps for other players, executing a coup, hiring armies and striking strongholds, that sort of thing. These 'moves,' made by the players and overseen/balanced by me, will shape the game's development, in addition of course to whatever other plotlines and interests I build into the thread.
Obviously still a really preliminary interest check at this point; I'm trying to determine whether I move forward with this as a unique RP or, well, not. No commitments necessary at this point; is this something that there's a market for?