I would think between 15-25 % of the copies will be sold on Xbox One.
The PS4 is more populair then the Xbox One, also people who own both consoles usually prefer the PS4 version because it runs slightly better and this is not a game with heavy online potential, so that will also help.
In Japan the Xbox One version won't even be released, but wouldn't sell anyway. Also its going to be bundled with a very good looking PS4 model and it will be a showcase for the PS4 Pro.
Anyway, it will be a very low % for the Xbox but I am happy they decided to support both platforms, we need the competition, I will pick up the PS4 version but next year when I have the Scorpio who knows, if they release a version with all the DLC I might also pick up the xbox version later :)
Twitter @CyberMalistix
