http://www.pcgamer.com/counter-strike-global-offensive-might-be-getting-a-pubg-style-battle-royale-mode/

As you might have noticed, the battle royale genre is as popular now as it's ever been. Games like PUBG, Fortnite and H1Z1 have struck a chord with players, and a number of other games now include their own interpretations of the genre—not least GTA Online and Ark: Survival Evolved. Now, it appears Counter-Strike: Global Offensive is next in line for the battle royale treatment. 

That's according to the Valve News Network, whose latest video examines CS:GO's patches dating back to May 2016. Within, creator Tyler McVicker considers a number of references within each of the shooter's updates that haven't yet made it into the game—such as compound bows, bare-fisted combat, adrenaline shots, breach charges, sonar pulses and MK2 grenades, among a number of other as yet absent features consistent with the battle royale genre.