Japan has a habit of just focusing in on a few platforms rather than spreading the love around, which makes perfect sense when you put the Xbox One’s failure in that region into perspective. Koei Tecmo tends to not even release their games on Xbox One over in the east, but with their western localizations, we often see both PC and Xbox ports.
The same seems to be the case for Dragon Ball Xenoverse 2. As spotted by Famitsu, the Japan-only trailer for the game sports a PS4 logo, whereas the international version gains the two aforementioned platforms.
Just a little bit of a heads-up for those readers currently in Japan!