https://www.polygon.com/2018/9/25/17903200/xbox-one-mouse-keyboard-support-warface

Microsoft’s Xbox One will finally offer keyboard and mouse support for some games. Phil Spencer, executive vice president of gaming at Microsoft, made the announcement during Tuesday’s episode of Inside Xbox. The first game to test the feature will be Crytek’s Warface in October via the Xbox Insider Program.

While the feature will be available for developers to implement in the near future, it’s not a global decision that Microsoft is making for all of the games on its platform. Spencer stressed that the idea is to open the Xbox One up to different experiences.