Final Boss theme Perhaps?

[Starlord]

IIRC that's the theme for Coerthus faction levequests. But yes, this is definitely one of the tracks out of the OST which screams "FINAL BOSS MUSIC" to me. Who knows, maybe we'll see it either in the raids or for the Ifrit battle.

Things can change or subject to change lol, and it hasn't been implemented yet so it still has time to make it into another section of the game. =) and leves are kinda being a thing in the past so it has a chance to be that theme =)