A PlayStation 4 listing for Digimon World: Cyber Sleuth has appeared on Amazon Canada.
This would, of course, be the English localization for Digimon Story: Cyber Sleuth, which launched for PS Vita in Japan in February.
Bandai Namco has been localizing its Japanese games with added PlayStation 4 versions lately. Tales of Zestiria, previously PlayStation 3-only, got a PlayStation 4 (and PC) version. J-Stars Victory VS+, previously PlayStation 3 and PS Vita-only, got a PlayStation 4 version. And Godzilla, previously PlayStation 3-only, got a PlayStation 4 version. Even Sword Art Online: Hollow Fragment, previously launched for PS Vita, is getting a PlayStation 4 version this summer.
A PS Vita version of the game is not listed.