CS:GO Battle Royale
Whilst it shares the same principles of last-man-standing with the existing games, it does differ in other ways. There are only 16 players per game (18 in team mode) and each player picks a pre-defined starting point. You can find weapons, ammo etc, but you can also find/steal money with which to buy equipment. Your goods are delivered by drone which can be seen (and shot down) by other players, which will be interesting.
More details can be found on Arstechnica