As I said, SE isn't going to give a fuck about the gulf between Xbox and Playstation. Their decision is going to live and die by the potential sales of their game on XB1. You look at FF13's sales as a more than 2:1 ratio in favor of PS3, but completely neglect the fact that the game still sold 500,000 units/brought in $30,000,000 in revenue on XB360 in its first month within a single region. Granted the PS3 version sold better than the XB360 version with less of an install base, and the PS4 is the current leader within NA/UK, but the XB1 still has strong sales within the region and will have a worthwhile install base once the game actually releases a few years down the line.