I took it to be a manifestation of Hydaelyn, sort of analogous to Altana of FFXI. The key hints for me were her god(dess)ly size and aetherial glow, and of course her wings embracing a great (large) Aetheryte crystal.
Trololololol... ;)
Just don't look at the rest of the CE. The Scholar AF art (whether it depicts a Scholar job or some other job/class wearing the iconic Scholar AF) is on the back of the main CE box, and on the cover of the art book, and on the game DVD case, and on the game DVD. (JP versions) :D
