We know Minfillia will play a pivotal role in the new patch. But what if it's likely that she'll become Goddess of the Warring Triad? Sephirot can be fought (suggesting the other two might be encountered in some form) and her method in becoming Goddess could be similar to Ysayle/Shiva and Archbishop Thordan/King Thordan. Perhaps Minfillia reaches a conclusion that clashes with the morality of other characters and would have to be fought by the Main character.