ok i found something u guys might find interesting, in the underground hallway with the easter egg that is dr maxis reading a letter he wrote and it talks about the project is gonna be done in 7 years. now there is a september calender in one of side rooms of teleporter b room. all the thursdays are circled and ends at september 24, from the day that der riese came out to september 24 is 7 weeks. and considering how far away mw2 is coming out it would make sense to make one more map. that is what makes me think another map is coming out.