Square Enix kicked off Sony's PlayStation E3 conference with not one, but two games. Kingdom Hearts 3 and Final Fantasy XV were revealed by the publisher to be development for the PlayStation 4. Today at a presentation held by Square, however revealed additional information.
Kingdom Hearts 3 and Final Fantasy XV are also in development for the Xbox One, Square Enix confirmed. With Kingdom Hearts being ported (?) to the Xbox One. You can catch the trailer for Final Fantasy XV up there.