https://www.pcgamer.com/halo-infinite-wont-have-a-battle-royale-mode-probably/

Halo Infinite, which as far as we know is also Halo 6, was teased in June at E3 and, more importantly, confirmed for PC. We don't know much about it, but thanks to a recent 343 Social Stream on Mixer, we do know that it probably won't have a battle royale mode. 

"I'll tell you right now, the only 'BR' we're really interested in is 'Battle Rifle'," 343 Industries lead writer Jeff Easterling says in response to a question about the mode's possible inclusion. "The original 'BR.' So, calm yourself."