I’ve played Tactics only this year and was surprised how much XII resembles it in mechanics despite these games belonging to different RPG subgenres. It lead me to think that XII only happened because there was this proper foundation of Tactics, so I doubt there’d ever be another mainline game in Ivalice, but more Tactics games are possible, I think.
I wish I’ll have enough time at some point to get to the Ivalice storyline in XIV.
I guess Oreshika: Tainted Bloodlines would count. It’s a turn-based JRPG for Vita, don’t know if there was any other releases. Your job is to manage a cursed Japanese clan where everyone lives for around two years, yet for some reason is able to reproduce with the help of Japanese gods. The pantheon is quite large, each god has certain elemental affinities and other interesting inheritable features.