Getting back different tier spells?

[Elexia]

I'm to tired/waking up to read threw this all, but I think before worrying about tiered spells, we need to worry about getting all the Elements back. Wheres water? (And astral/umbral, if we'll have those again)

They overcomplicated it in XIv. Astral/Umbral is a make up of certain spells, they aren't separate elements technically. Only reason enemies still cast certain ones is because they never update their spell lists.