So now that the PS4 finally has been revealed, perhaps SE can go ahead and let the cat out of the bag... And say that Versus will come for the PS4, lol.
Anyway, Square has said that a new FF for PS4 is in the works and that there will be a more formal announcement at this years E3. I'm guessing this is either Versus or FFXV. Maybe Agni's Philosophy will be involved.
I have to lol though, the videos up for the games so far aren't all that impressive, considering it's PS4, and yet they are just bordering on the heights of FFXIII on the PS3. Square is still far ahead with FF animation, but the difference is just that other companies also can make awesome graphics nowadays. Not gonna fall too headlong into my own statement, because I know FF has a "different" kind of art style in its animation, meaning you can't really compare it as it's half-fantasy, half-reality, but my point is just the gist of this.