The Witness has been rated for Xbox One.
Update: Blow told Polygon that the studio only mentioned Xbox One in the listing to avoid having to resubmit it again in the future. However, the studio currently has no plans for an Xbox One version.
Original story: The Witness, Jonathan Blow's highly-anticipated second project, has only been announced for PC and PlayStation 4.
According to The Entertainment Software Rating Board (ESRB), however, an Xbox One version is coming. The board recently rated the game for all three platforms, and awarded it with an E rating.
Whatever the case, when January 26 rolls around, the game will be available on PlayStation 4 and PC. The Xbox One version could become available later in the year.