A full elemental wheel to make Red Mages rotation a bit more robust would be nice, but given most seemed happy with Red Mages rotation seeing (essentially) no change with Shadowbringers, I imagine I'm in the minority with that.

Still, I'd like a job with full access to the elemental spells, that cycles through them in a wheel-correct manner, and Red Mage is the perfect candidate until Geomancer gets added...

Add Verwater and Verblizzard as our Verscathe, higher potency than Scathe, but the trade off is lower Mana generation perhaps.
Change Reprise to inflict "Elementally Charged" on the target, change it to an ability with a mid-to-low cooldown.
When an enemy with "Elementally Charged" is hit with a Verstone/Veraero/Verwater/Verfire/Verthunder/Verblizzard spell, they become charged with that element.
Verstone/Veraero/Verwater/Verfire/Verthunder/Verblizzard gain a bonus when following the elemental wheel.

Now, this is where we decide what elemental wheel we want to follow, the classic one with all the elements (Fire/Ice/Wind/Earth/Thunder/Water), or XIVs dual wheel, where Water/Lightning/Earth and Fire/Ice/Wind sit separately. I'm incline to stick to XIVs, just because you can also play around with Mana generation in that case; Doing the Wind>Ice>Fire rotation boosts Black Mana generation (perhaps Verblizzard and Verfire get bonus Mana, Veraero gets bonus damage?), doing the Earth>Lightning>Water rotation boosts White Mana generation (and same here, Verstone/Verwater bonus Mana, Verthunder bonus damage). Would be a new way to play around with the gauge building. Do a Reprise, hypercharge your White Mana generation, do another Reprise and switch to building Black Mana.