[@Hylozoist] Oh I haven't finished the series yet, better finish it myself. 

But yeah, the Fables series would definitely be fair game for inspiration and characters. Now the actual continuity and events of the series would probably be a lot different since they would now exist in the same world as superheroes and aliens. Who were you thinking of playing? Depending on the character they might be someone who could already exist in the mythology of the DCU without having to be a literal fable brought to life. 

Like Totenkinder could be a witch from the mortal world and Bigby could be an actual werewolf from Earth.