According to Game Informer, Final Fantasy Type 0 HD for PS4 and Xbox One will release on March 17th, 2015. That's not all, it will include a demo voucher for Final Fantasy XV. The FFXV demo, titled Episode Duscae, will feature focus on early parts, with certain game elements changed for the demo.
It is unknown if the Final Fantasy XV Episode Duscae demo will be available at launch, or if it will be free for all to download. The FFXV demo will release for both PS4 and Xbox One.