I would definitely be interested in a character driven skirmish game, but not so much character driven that it becomes a straight up RPG. Also, limited squad sizes would be a must (5-20 max) with each character having their own specific attributes and stat lines. For instance, in many WW2 movies and series, there was a sniper, a saboteur, a diplomat, a leader, a grunt, a reluctant soldier, a pious guy, etc. Developing stat lines that would take these attributes into account would make a tabletop game more interesting, rather than having one character or hero who is ridiculously overloaded with stats, or the opposite, and entire army of clone soldiers.
I\'m a big history buff, so I think as far as a theme goes, how about some sort of alternate history with fantasy/sci-fi elements. The tricky part would be finding a balance, the current background for 40K is just too ridiculous, but purely historical games can get boring. I was always a fan of Shadowrun (anyone remember?) but I never saw it take off. Or perhaps a game set in the future, but drawing on different cultural elements (Russian: Arctic Warbands, Japanese: Samurai with sophisticated ballistic weapons, Americans: civil war era soldiers with bionic implants...) post-apocalyptic been overdone yet?
Would love to kick around some more ideas about this...One of the biggest drawbacks to table top wargaming is the inability to customize your rank and file minis and give each one character, without filling out 6 pages of info a la an RPG...