XV only ever had Titan, Ramuh, Leviathan, Shiva and Bahamut.

Either way, this thread is useless.
You don't know if there's DLC, and just assume there might be, and even if there was, you have no way to know how it would affect XIV, no matter how much you think you do. Without solid facts, all you're doing is vague speculation, and if I wanted to do that, I'd have a better time speculating about Metroid Prime 4, a game I don't believe even exists.