I am 95% sure that the only FF game still to be released on these consoles is Lightning Returns-FFXIII-3...
It is just too late for them to have more than 1 game, but I would not be shocked to see Versus or XV announced for PS4, though maybe not until after XIII-3 is released to avoid taking attention from that
But let's not forget how stupid Squeenix are, they seem to hate doing the logical thing, like making KH3!!