Ok, so, I noticed a couple of things after watching that "Back in Black" trailer a couple of times. Here we go: (If I find anything else significant, I'll post it here)
1) Egypt (30.0500 N, 31.2333 E)
Coordinates in video: http://i.imgur.com/69hB3aV.png
Map location: http://i.imgur.com/sXtJHgp.png
Earth Map: http://i.imgur.com/7RVeAqN.png
I'm thinking that has a good possibility of being the location for the next Zombies map. Pyramids are in Zombies (Moon, Shangri-La) and there's pyramids in Egypt. If this is the location of the next Zombies map, then the pyramids could have something to do with Group 935 (Maxis, Richtofen, etc.) Perhaps even Samantha could have some storyline involvement here?
2) Switzerland (47.3667 N, 8.5500 E)
Coordinates in video: http://i.imgur.com/PnKpwCL.png
Map location: http://i.imgur.com/JV5S3xI.png
Earth Map: http://i.imgur.com/vta72Eb.png
Leads to Zurich, Switzerland. Either the location of a campaign mission or multiplayer map by the looks of it. Also, the coordinates are on the side of the gun - this could be a hint to a particular location in which weapons are produced. Not sure though, just theorising.
3) Singapore (1.3000 N, 103.8000 E)
Coordinates in video: http://i.imgur.com/cGpLqJ7.png
Map location: http://i.imgur.com/lrZ198h.png
Earth Map: http://i.imgur.com/FCmzGrF.png
Another possible campaign or multiplayer mission location if it hasn't already been in a Black Ops game. I think I remember a Black Ops 2 multiplayer map set in singapore, but I'll look into it.