I can point XBox One owners to a whopping 6 seconds of video of what is purported to be the XBox One version of the game in the "ID@Xbox" (Independent Developer Publishing Program for XBox One) video that was shown at E3 yesterday. Fast forward to 2:38 in this video (after you set it to 1080P in the settings menu):
https://www.youtube.com/watch?v=Rq6T-fz5jNQ
Not much to go on, but it looks okay...