We already know Sony is more synonymous with Japanese audience. If you have an anime character in your icon on GAF, its about 50 percent more likely you game on Playstation than on Xbox in most cases.
I'm just wondering what level of sales SE need to reach in order to justify developing it for both consoles. Pre-E3 speculation was that it was PS4 exclusive and since that didn't end up being the case I assume they expect it to do well on Xbox.