No Japanese dev cares about the XBOne except inasmuch as they need to to reach the NA audience. Since the PS4 has had good penetration in NA from the start this gen they're hoping they won't need to bother with the XBOne.
Excited to see what they do with the series, even though I'm not really a huge fighting game fan.
Also, to the people freaking out over console exclusivity: I totally expect a Super SF5 for both consoles a year or two after the release of SF5. Capcom are way too money hungry to go console exclusive in this day and age.