Getting more information on the Ascians would be very welcome, because for as much as we know about their goals and methods, we don't really know much about them personally beyond a little information that can be gleaned from the Heavensward SMN questline.

The ultimate question I have surrounding them, and one that feels like it might be key in the upcoming story is who created them? The best conclusion I could come up with holding the information available is that they were created as Zodiark's dying curse toward Hydaelyn, but... if there are "original" and "transmigrated" Ascians... and, as I recall, there was an old legend about a Warrior of Light joining the Ascians... maybe... hmm...