Quote Originally Posted by Seraphor View Post
But that's not Y'shtola, it's Matoya in Y'shtola's body...
That's an assumption. We simply don't know enough about what happens to the Scions to tell what's going on there, for all we know Y'shtola simply took up an alias... Everything else points to it being a zone on the First though; There are seemingly no Source zones. The expansion is First focused. Screenshots suggest the First. The simple fact that all these zones seem to be mirrors of Eorzean zones...