Red Mage

[Kages]

Except that there is no Red Mage in FFXIV last time I checked. Did they implement it so suddenly or is it just one of your wild speculation threads again?
I bet it's the latter.
Oh and I don't think pure debuffer would work that well in FFXIV. If they ever get implemented, as you propose, they will at best function as a debuffer/DPS hybrid. So they would act as a melee bard with debuffs instead of buffs. I think people would still choose a bard over a red mage then (except if their debuffs would be too broken).