In other news...

I think a lot of the ideas we have for new spells are awfully hung up on "every Black spell must have a White counterpart and vice versa".
Bear in mind, we have two White utility spells that presently have no counterparts whatsoever and are not relegated to building White Mana -- and with the current state of BLM we don't have many options in the way of Black utilities to balance them out, either.

This in particular is why I'm completely fine with introducing Ice and Water spells as having entirely unrelated positions in the rotation; at the end of the day, there are multiple ways for spells to "balance" to the satisfaction of Red Mage lore, particularly if we argue we cast both sides just as often overall. (Sure, it may be a bit lopsided in practice, but I know loads of RDMs who go out of their way to only use their favorite Verfinisher, so practice clearly isn't a make-or-break concern.)

Why not have Ice magic as our MP recovery, if we cast it as infrequently in a raid as recovery spells? Why not have Water magic as our main cleave, if we churn out just as much Ice damage in and out of AoE? Why not have a Black AoE Verfinisher if we built it with White spells (other than that we probably don't need an AoE Verfinisher all that much right now)?
Would anyone object if they swapped Verflare with Verfoul? I think it'd be more fitting to have the opposite of Holy be a Dark spell after all. They could always recycle Verflare elsewhere.

Just a bit of rambling. Probably an unpopular opinion, I just think we're limiting ourselves by declaring "copy this spell twice but change the element" as the only means to "balance" our casting as far as lore is concerned.