Yes, Square Enix will release this in the west because it will cost very little effort in comparison to localizing RPGs, and action titles have a built in audience regardless of brand. Koei will also push for it, because they have a fanbase for Musou titles in the west.
It's a no brainer really. The fact that they specifically bring it up in a media interview in Japan pretty much seals the deal. These interviews are basically extended PR, not investigative journalism.