The good news: Final Fantasy VI will be out on Steam next week, publisher Square Enix just announced. The bad news: It’s hideous.
This new PC version, to be released on December 16, uses the same sprites and interface as the atrocious-looking mobile version. This makes me very sad. It’s not just the sprites that have been mangled; even the fonts look worse than they did on SNES or in the superior GBA version. (For further dissection on just why this style looks so bad, see this tweet by artist Bill Stiernberg.)
If you do want to play Final Fantasy VI on a modern machine, I recommend buying the SNES version via Virtual Console on Wii (which you can access on Wii U).