I am liking a plains Native American civ, but we are going to be waiting awhile. Obviously you'd go with the Gen. Custer scenario there... could be interesting. Mayans are needed in the game as well. Obviously that overlaps with what we already have. Africa is an absolute must, so I expect Carthage, Korea, Zulu before anyone else. That will put as in November/December with lord knows how many total civs we'll have at that point. Then I'd expect the expansion in December that will add a civ to each region. Couple Euro civs, one more African, one more American, one more Asian/Middle East.