Metal Gear Solid V: Ground Zeroes is coming to the old consoles as well as to the new ones, so even the people who haven’t upgraded (yet) can experience the game. But if it were up to Kojima, he’d prefer people to play it on PlayStation 4.
End of next month, a long awaited PS4 is coming to Japan. So is “GZ” coming the following month. I want GZ played on PS4 thou its available on current gen. When I say this at itw abroad, they say “Next gen? Here PS4&ONE is current gen!”
There are no huge differences but according to what Kojima said earlier, the better hardware will allow for more realism and an improved performance. It will also make use of the DualShock 4’s built in microphone.
Source: Hideo Kojima Twitter