So i decided to take a look at my Pc Files for black ops 2 and i stumbled across some interesting files, basically i found 4 files that go by the names "zm_tranzit_gump_prealloc_0" There is 3 more files numbered in order with the same name except the end number going 1,2,3. The idea that there are simular file names except that they are named for each stop on tranzit and i think that these files point toward that they plan to expand the current tranzit map as they have already put aside these 4 "spots" on the map and would go with the idea of the 4 dlc's and each dlc it would just fill in the information for the location. ill link a screenshot of the file list as proof.
http://imgur.com/IjHPd
I also found some the loading screens from some past maps just dont Read here if you dont wish to know.
Screenshot Here : http://imgur.com/Lpjdi
So the Loading screens i found were for Nacht, Der Reise, And Moon so i feel there is a high chance you will be seeing these come back in a later DLC
****DO NOT READ IAM AN IDIOT I FORGOT ABOUT MONKEY BOMBS****
I Also Found a Texture which is very Interesting and may blow some minds ( I think its quite insane) but ill wait to see if you guys would like to know, if the majority do not wish to just pm me