I'm sure it will be a new separate map with tranzit and you can play survival on parts of it. I mean just do the no fog glitch and look how the map is popping up in the background, I don't really think it can grow even more (the same goes with night bus route). However i hope the whole world isn't destroyed yet (like tranzit) so we don't have to see lava everywhere and ash in the air which darkens the air and let the map look like it's night time. I wanna see a new concept (but that was never the problem of treyarch i'm happy with each of their zombie maps). A underwater city would be nice (because as the missles hit the earth they resulted huge tsunamis which covered some parts of the eartch or sth. ). There will be an easter egg which is irrespective of the green run tranzit easter egg but still continues the story.
Just my thoughts :roll: