The official Japanese website for Dragon Ball XENOVERSE — in conjunction with an Xbox One press conference, as detailed in an article on Famitsu — announced today that the game will indeed be making its way to the Xbox One in Japan.
Xbox Oneを含む、4ハードにて発売決定！
Set to be released for four hardware platforms, including Xbox One!
The game had previously been announced for the PlayStation 4, PlayStation 3, and Xbox 360 in Japan. Internationally, the game had been announced for the same three platforms as well as the Xbox One.
The Xbox One is not yet available in Japan, but will ship to the region 04 September 2014. Dragon Ball XENOVERSE does not yet have a release date set.
Thanks to Super Saiyan Prime for the heads-up.