In an interview with Eurogamer at this year's Gamescom, the player that isn't known (Brendan Greene) himself confirmed that the size of the upcoming desert map will be 8x8 km in size. The map was originally announced to be 4 x4 km in size, for context.
But in the interview Greene gave an update regarding that and had this to say: "For 100 players an 8x8 just makes more sense and it gives more flexibility when we move onto custom games and things like that."
via destructoid http://ift.tt/2wlPo4l