The person also says, "The files and data for her is included in the next Borderlands Pre-Sequel update which is available on steam if you subscribe to the beta channel. While hidden until you purchase the DLC, its possible to force the game to play as her with some tinkering."
Borderlands: The Pre-Sequel's Season Pass does include new characters so it looks certainly possible that Aurelia could be one of them.
Plenty of female playable characters, don't you think?
Source: Se7enSins forums via Dualshockers