After seeing The Dark Knight myself and Eoin had a long chat about where a third film might go. We discussed the universe Christopher Nolan had created and what Batman villains remained that could work in his reality.
Empire Online listened into our conversation, then went back in time and published it on their website - the result being a great article on what Batman baddies could work for the third installment and who might play them…
It’s a tricky question, many of the Batman villains aren’t quite big enough to hold a Summer blockbuster - but then again, isn’t that what we would have said of Ra’s Al Ghul?
The problem is that with Heath Ledger’s Joker, and Aaron Eckhart’s Two Face fresh in our minds it’s hard to see how they could be competed with, but enough time will have passed in the meantime to allow us to settle into a potentially lower key but just as compelling film which focussed even more on the drama than the high octane action (see my quibbles with The Dark Knight movie).
So what would my suggestion be?
Well, I love Empire’s idea of Toby Jones as the Penguin - as myself and Eoin discussed he could be far less cartoonish and much more mob underworld figure. This would also potentially allow for the detective aspects of Batman’s character to emerge more fully.
Another idea, which could run in tandem with the Penguin would be to bring on the women. In a way it’s a shame that Selina Kyle (Catwoman), Pamela Isley (Poison Ivy) and Talia Al Ghul (Ra’s daughter) haven’t in some way been established in the franchise, because it would be the perfect change of direction, so as not to be competing with the themes of the Dark Knight. 
The tension that could be created both romantically and adversarially(?!) could be very interesting, with Bruce Wayne’s interest in Selina Kyle, Poison Ivy’s ability to bend Bruce Wayne/Batman to her will and Talia’s romantic interest in Bruce Wayne fighting with her interest in revenge for her father.
I’m not usually a fan of throwing too many villains into the mix in one film, but still… how about this… Penguin steps in to fill the void created by the departure of the Joker and begins to whip the mob back into shape. He teams up with Poison Ivy as potentially the only one who can bend Batman to their will - something the public are all too eager to believe as Batman is now their scapegoat. 
Meanwhile Catwoman is on the lookout for some easy cash to be made in the intervening chaos, and ends up caught between Batman and the Mob as she plays both sides…
If you really wanted to you could throw Talia in for good measure, as the uneasy relationship develops between Batman and Catwoman, Talia is throwing herself at Bruce Wayne who is tempted in his recent grief to seek comfort in her arms, only to discover that while she has developed feelings for him her real aim is to destroy him.
That’s a lot of character establishment for one movie though, and Nolan - if he does a third installment - will probably surprise us with somehting completely out of left field. What about no super villain, just Batman vs the mob in true detective style?
What do you think? The person who comments the closest to what gets made will get a Popcorn and a Coke on me!