Don't know enough Au Ra to comment on them in particular, but every prominent Eorzean race (Highlanders, Miqo'te, Lalas, and Roe) were present as Ishgardian citizens (usually guards/knights) in the original depictions of the Coerthas zones in 1.0.
V'aleera's Wiki - https://wiki.ffxiv-roleplayers.com/pages...eera_Lhuil
V'aleera's Tumblr - valeeralhuil.tumblr.com
V'aleera's Tumblr - valeeralhuil.tumblr.com