I'd like to see Fallout: China. they could explore a 50's China, and since during the war they were beginning to make their own form of power armor, they could keep that in there! Only problem is how any humans would've survived the war....was there ever a Vault project in China?
oh! got another idea, how a bout a Fallout even further into the future, where the US has fully recovered, and now we're trying to go to the other countries. You start on a colony in Europe or something, and you look at the world.....well that actually sounds more like STALKER actually lol...