I liked the pop stars vs the real musicians idea tbh. Each person could have been a person. I think it has legs.
I still think the fantasy themes (MK, GOT, SW etc.) work best. They lend themselves to it much more easily.
Updated. Future games section updated also. If those in the queue could give me a theme to put alongside their name, that would be fantastic.
GW eds. I'd be thinking either Harry Potter or A Storm of Swords. I'd be better at the latter as I finished with HP about 5 years ago but if my time is soon I'd do the former, for obvious reasons. I think HP would be easy to map out as well.