Microsoft is now rumored to be working on 4K webcams. These accessories, which are likely to go under the Surface brand, will be compatible with Windows 10-powered devices and the Xbox One. The new webcams, which may also support Windows Hello, may be available next year.
https://www.notebookcheck.net/Microsoft-may-be-readying-4K-webcams-for-Windows-and-Xbox-One.386306.0.html