Originally posted by 3P1C
I also thought about that as well but i think they might not cause they could use the other maps as DLC and make more money off them
Thats the thing, Treayarch isn't focused on money. They're focused on making a great game and focused on their gamers. They want to make a game that lots of people would like. With more than one map to start out with, they won't have to release a map pack until they know that it doesn't have any glitches on it.
---------- Post added at 04:00 PM ---------- Previous post was at 03:54 PM ----------
Also another theory is that during one of the missions the atomic bomb has to be used. So I think that one map could take place either where they built the bomb, or (more likely) Hiroshima/Nagasaki after the bomb. It would be really creepy and the zombies would be there because of radiation or something.