...learn who "she" is?

Nael van Darnus wasn't a woman in 1.0. At least not if you look at the movement and animations (can't count the voice cause of the helmet).
There was speculation, she is the warrior maiden he defeated. Bradamante. But I recall a DEV post saying it is not her.
She isn't a humanized form of Bahamut either, as we now know for sure he's a male dragon.
Or was it just meant "to shock" the legacy players, as Mister-Badass-Megalomaniac was a woman from the very beginning?

Also I still wonder what the original plan for Nael and Dalamud was, as entrapped Bahamut prime was just the way out of 1.0...