https://wccftech.com/blizzard-xb1x-incredible-overwatch-4k/

Blizzard talked briefly to WindowsCentral of their plans to implement 4K resolution for the Xbox One X ( Amazon, $499.00) version of Overwatch while taking the time to praise the console’s powerful hardware.

Overwatch team is excited with great possibilities Xbox One X opens. The team is currently exploring how the game experience can be enhanced on this platform to leverage the console’s incredible hardware, and is working on implementing 4K resolution in the game on Xbox One X. It is very important for the team to make sure the user interface looks natural on a truly big screen. We will share more details about our plans for 4K support on Xbox One X later.