Throwing my hat in the ring for glam, I wish the artifact gear would try some more varied options. We have been getting variations of the same outfit since stormblood and personally, I think they have all looked objectively worse compared to the lvl 70 set. personally I would love to see either a butler aesthetic or just a more business/modern suit design. Red Mages to me, look the coolest when the flashiness is hidden until they start doing the flippy dippy shit and that would really scratch the 12 year in my brain and his sense of what is cool.

Besides that, I would love if they did some more stuff with the swords we summon. While cool and badass conceptually, we really don't do much with them with them only being two ogcds. I would love if maybe as an alternative movement option they had a phase of the rotation that the summoning of swords. Maybe after we stack up enough verfinishers? IDK that would need to be workshop-ed hard