PlayerUnknown's Battlegrounds' third map, Sanhok, comes out this Friday, 22nd June.
Sanhok is a lot smaller than PUBG's other two maps. It's 4km x 4km (one fourth the size of Erangel or Miramar), and so games tend to end more quickly on the tiny island. Still, every game features 100 players, as is battle royale standard.
Because Sanhok is a small map, certain settings have been tweaked to fit its design. For example, faraway players and vehicles aren't rendered in the same way on Sanhok, which the developers said improves server performance.