It looks like the Korean Ratings Board might have revealed one of Microsoft’s possible E3 announcements.
Sunset Overdrive is one of the few Xbox One games to not have a PC version in any form. Fans have wanted a PC port but Insomniac Games has said that the decision lies with Xbox. It looks like they have come to some agreement because the Korean ratings board has a rating for Sunset Overdrive PC by Microsoft Korea. Check out the rating here. These usually lead to an announcement very soon. This would also imply an Xbox One X patch. This will likely also be on the Microsoft Store on PC and not Steam.
Sunset Overdrive is currently available on Xbox One. Read our review of it here.
Source: God is Geek