https://www.techradar.com/news/halo-5-guardians-might-be-coming-to-pc

It seems there’s a chance we might see Halo 5 on the PC yet, at least going by some new box art for the game which has emerged on Amazon.

In its Amazon listing, Halo 5: Guardians has had some wording on its box subtly changed, and where previously it read ‘Only on Xbox One’, it now says ‘Xbox One Console Exclusive’.