I have a question: is it possible to get this retranslation to work on the PlayStation 4 version of the game? I think I already know the answer, but I figured I'd ask anyway. Thanks!
I've got bad news and good news. The bad news is it would require a hacked PS4. I don't know the current state of PS4 hacking and modding, but I suspect there's no way to get a PS4 to actually launch a modded game like that.
The good news? The PS4 version of FF7 is basically the Steam version in a wrapper, much like the Android and iOS versions are. Data formats
are exactly the same. As mods go, injecting the retranslation should be relatively straightforward.
Someone more informed than me on the state of PS4 modding as a whole could probably give a more useful answer. But as of right now I'm pretty sure the answer is "not yet, but probably in the future".