I think it's possible, if only because of how popular the FF XIII series (rightly) remains in Japan, and hell fucking yeah I'd want it. I don't care for Lightning Returns, but Final Fantasy XIII and XIII-2 are both really great and two of my most loved games in the series despite their flaws.
It's popular in Japan?? That makes me happy :')
I remember there being some Nissan commercial with FFXIII characters even after FFXV's release which I thought was really odd lol but maybe if that's true it makes sense