A couple questions about Au Ra

[Rosenoire]

Their design is inspired by both demons and dragons, but there's no lore connecting them to either.

Officially, no. However, I was looking through the first lore book the other day, and I ran across the section on the Allagan Empire and the Third Astral Era. In the description of the Allagan invasion of Meracydia, there's a referenced to Bahamut being the "dawn dragon" and Tiamat being the "dusk dragon". Could very well be a coincidence, but it did make me wonder