We can see above that there is, of course, an enhanced graphic. In addition to that, Japan will also get 12 new Digimon and new events. Those will be also be available on the PS Vita version through a free update.
Digimon World: Next Order will be available for PlayStation 4 in Europe on January 27 and North America on January 31 2017, and in Japan sometime later in 2017. Also read all post related to Digimon here.