A new 4 x 4 km PlayerUnknown's Battlegrounds (PUBG) map has been teased at the Game Developers Conference that has been taking place in San Francisco. PUBG's developer announced that the public testing phase for the latest map will start in early April. The intent behind releasing a smaller map is to create a more intense style of gameplay.
https://www.notebookcheck.net/New-smaller-map-for-PlayerUnknown-s-Battlegrounds-teased-at-GDC.290752.0.html