On a subject relating to the 5.2 MSQ...

Could it be assumed that Elidibus awakened that Sahagin priest's Echo in the same way he seemingly did for the people of the Crystarium?

That's something that's been rather vague for a long time, so finally having a proper explanation for it is rather nice.

I'm still curious as to how they go about "raising up" individuals to become Ascians though, as Emet Selch mentioned only overlords like him were capable of such, and it obviously involves more then simply awakening one's Echo.

It honestly would not surprise me if our new mystery Ascian who's helping Zenos is someone familiar who was given that treatment after their presumed demise.