Borderlands: The Pre-Sequel has been out long enough for some to data mine the game files and unearth what could possibly be a future character DLC.
The information comes from a member of the Se7enSins forums. Apparently there's an upcoming playable DLC character by the name 'Aurelia The Baroness'.
As you in the image above, the screen is taken from the character selection screen.
TechnoJacker says the files an be found in an upcoming patch, available now if you subscribe to the beta channel for the game. It might be even possible to play as her, if you know what you're doing.