Make different jobs do different things that other jobs can't. Job identity seems to be present in spades in PvP but also in other Square games like Bravely Default, FF3, FF5, FFX-2, Octopath Traveler, Dragon Quest, FFXI.

Maybe the devs should play some of the RPGs their own company made? Or play WoW since classes there have identity.

Maybe they will add an AP system and give us skill trees?