I've started playing the "spiral" which is a mode where you are in the world doing a story with this or that choices. it kind of plays (in combat) like FFtactics, but it's "like xcom" in that you have an army that puts out teams that fight, does a selection of missions "per turn" and then the guys who go get exausted (and are exausted longer if knocked out). and you side line them to train them to rest, train, (for more skills or xp) or to escort caravans or whatever. This mode has been pretty dang fun so far but i'm only like 10 t urns in. you develop your little town and choose "one of three" skills when your guy trains or gets a skill gain in the field. so it seems to be profoundly replayable. pretty cool and novel for a gatcha game.
it is, however buried behind the obtuse game design of 1. a gatcha game (12 kinds of crystals and 90 percent value!) . 2. an asian studio who has to reivent every wheel, and 3. a fucking mobile game. You have to progress the story until you get to the point that you unlock the spiral to play it. you do have 'some input' on the gatcha because you can bring a rare character in (you can pick so many of your main roster to bring into the story mode), but they start at level 1 without all the gear and shit from the main mode. so it's still a climb of them gaining xp and gear.
i also saw that the units come in factions, one of them is "the union" which is like a union of knightly assholes. the units will have a thing that says like "buff your homie to deal +damage" with a tag saying "if that unit is a union unit, it also gets +2 movement". so it seems like above and beyond FF tactics, you can build a squad for interesting synergy.
People don't change job. so wizard is always a wizard.