Square could expand their remastered versions of former success titles to PS4. Some days ago, Tai Yasue, co-director of Kingdom Hearts HD 2.5 Remix and Kingdom Hearts III, told to IGN that Square had not ruled out a PS4 version of Kingdom Hearts HD 1.5 and 2.5 Remix.
Final Fantasy X/X-2 HD Remastered could be the next one. This game was listed on the official Square Enix’s French shop. The page was removed, but you can check out this evidence for yourself:
There are a lot of people that didn’t buy the PS3/PS Vita version, because they had already jumped to another system, most likely a next-gen one. So, there are chances for this.