So i could be entirely wrong and might be missing/misremembering some info(so please correct me), but could the MSQ be hinting that krile will become a Oracle(prophet in japan)? The reason i was thinking this is because of the ronka hero tiuna which the shadowbringer MSQ dialogue says this about her
"Y'shtola: I wonder... By the light... of fallen stars... great power awakens...
Almet: Tiuna was not only a master of spellcraft. It is said she could see truths long lost and hear the voices of men's hearts."
And then we have this description of krile from the wiki
"She discovered she possessed the Echo at the age of twelve. In her, it manifested as a sensitivity to the whispers of the soul, and her adolescence was a dark time hounded by the thoughts of others."
And unless im misremembering, in endwalker krile had a vision( which no one else saw) of the final days and stars falling while in Sharlayan. Again it might be a stretch and was curious what everyone else thinks about this possible link.
Edit: dont have a link but i remember yoshi saying Oracle was his personal favorite pick for caster in stormblood but they chose red mage since it made more sense lore wise. So now that it time for a caster again maybe yoshi will try to fit it in.