There has already been murmurs about Beyond: Two Souls coming to PS4. After all Quantic Dream have long been working on PS4 and much like The Last of Us it's a port that makes sense given the rather empty release schedule on PS4.
VG247 now reports that two separate Swiss retailers (Alcom and World of Games) have the game listed on PlayStation 4. One of them has it down as a September release. Given the brief window between announcement of the remastered PS4 edition of The Last of Us and its release it would appear plausible Sony are planning something similar with Beyond: Two Souls on PS4.