https://www.cnet.com/news/e3-2018-halo-infinite-revealed-microsoft-event/

The next entry in the Halo franchise is official -- and it's called Halo Infinite. 

"With Halo Infinite we will join master chief on his greatest adventure yet to save humanity," head of Xbox Phil Spencer said after the initial trailer was revealed. The game will be powered by the "Slipspace Engine," a new engine for the franchise. And that engine will power the game for both Xbox One and Windows 10, a major step for the typically Xbox-focused franchise.