A rating listing was found on the European ratings board, PEGI, for Final Fantasy VI on PC.
The site states that the release date for the game was November 26th, 2015, but seeing as that’s already passed that’s obviously not the case. However, it could mean that the game is very close to a PC release.
It’s also unclear whether the game will be a port of the SNES version or of the newer Game Boy Advance version (or even the Android version) of the game.
We’ll keep you posted on when a release date arises.