Three Final Fantasy games were announced at XO18 this weekend as being added to the backward compatible library for Xbox One. However, they may or may not be the ones you were hoping for depending on the kind of Final Fantasy fan you are. The three games in question, which were confirmed by the game's official Twitter account, are Final Fantasy XIII, Final Fantasy XIII-2, and Lightning Returns: Final Fantasy XIII.
— FINAL FANTASY (@FinalFantasy) November 10, 2018
On top of this announcement, all three games will be added to the library effective sometime next week. So if you own any of them, feel free to dust them off the shelf and make sure they're not scratched to hell. Hopefully, this is the start to making more of the library available on Xbox One, since most of the FF library has been almost exclusive to Sony's consoles over the years.