It does look like a police procedural that happens to take place in Gotham and with Gordon as a beat officer. But, still, showing "early" versions of Gotham criminals (like The Penguin) could still make it interesting. Even making Alfred and young Bruce Wayne part of the usual cast could prove to be interesting. But I don't see the sense in younger versions of certain other Batman characters like Poison Ivy and Catwoman, that just seems a bit needless. I mean, do we really need a 12-year-old Catwoman in semi-fetish gear committing high larceny and doing cat puns?