Hajime Tabata was interviewed by Spanish website Vida Extra and he dropped quite a few interesting Final Fantasy XV related tidbits in the occasion.
First of all, we know that Final Fantasy XV will be out for PlayStation 4 and Xbox One on November 29th worldwide, after a huge wait due to the extremely long development. PC gamers will be left out for now, though recent Final Fantasy ports on Steam and previous statements from the development team hint that the game will eventually be released on PC.
It won't be anytime soon, though. Here's what Tabata said on the matter:
On that hypothesis, not talking about something real, just an idea, if we worked on a PC version what I have very clear is that we would work to provide a better version of what we have now on consoles. We could say that something like this would take us more than a year. We should work to adapt the engine, which is very laborious, and from there to develop its course.
Tabata also mentioned that the team will keep working to support newer consoles like PlayStation 4 Pro in the best possible way after launch. Square Enix already announced support for PlayStation 4 Pro and Xbox One S (HDR) at launch, so it sounds like even further enhancements are planned. But the big news is that the developer is toying with the idea of a DLC specifically made for Sony's PlayStation VR, due for release in just a few days from now.
Final Fantasy XV was obviously not designed for PS4 Pro from the beginning, but obviously we work following the launch to go adapting to the new consoles appear and improve it according to their power. What we do have is the idea of launching a focused DLC PS VR.
What you saw at E3 was just a technical demo. I'm talking about a whole new DLC so you can play from VR. Not the whole, of course, would be additional game content, perhaps a particular part of the game to be enjoyed in virtual reality.
Still, the delays allowed Square Enix to squeeze a lot out of the existing PlayStation 4 and Xbox One. The latest gameplay videos showcase clear graphics improvements from earlier builds.
While you're waiting for the game to be available, you can watch Kingsglaive: Final Fantasy XV, the CGI movie out now. According to Tom, it's fairly enjoyable despite being overly melodramatic.