i actually believe they will be going to area 51 -> America, because if you go to transporter C and go into the mini bunker thing , there is a radio behind the boards-> and if you hold square or B they talk about needing more supply for the wonderwaffie and all that electrical stuff and the only place is America area51 .
The next map is deff going to be in North America if u listen to all the radios and look at some of the easter eggs my guess from the radios Nevada , Area 51 - USA garunteed if they even do come out with a map pack 4 but america is the only place a nz map hasnt been and the clues im like scooby doo so i just know