I could see this show really working if the already established villains are Falcone and Maroni as the main mob bosses when Gordon enters Gotham. These guys could have tons of dirty cops and politicians in they're back pocket that Gordon has to deal with while trying to take them down in a first season....He could also prob. deal with Rupert Thorne in some eps. ...meanwhile he has to deal with criminals like Mr. Zsasz Black Mask and The Penguin who keeps a front as an 'upstanding public figure' who's secretly running a huge crime ring......I would also cap off most episodes with some kind of prologue following a twisted young thug version of the Joker who we see transform into the super villain we all know. He could maybe start out as a criminal who has a 'flair for the dramatic, wearing make-up and loud clothes and slowly he gets crazier and more dangerous as he gets more of Gordon's attention....I think if Batman isn't seen then a good show could still maybe be molded with something like this.