In an interview to GamesIndustry.biz, Microsoft's Chief Marketing Officer for Gaming, Mike Nichols, said that there are no immediate plans to bring VR/MR capabilities to the Xbox consoles. Nichols feels that VR/MR is more suited to the PC and the focus currently at Xbox is to enhance the experiences on the TV.
https://www.notebookcheck.net/Virtual-Reality-and-Mixed-Reality-not-on-Microsoft-s-radar-for-the-Xbox-One-consoles-anytime-soon.309796.0.html