I think Man-Bat would be a great villain for the Batman begins sequel. The Joker had already his movie (Jack Nicholson was great). If the director can pull it of Ok (I did enyojed the "Joker Card" ending of Batman Begins), but why not some body new, somebody unexpected? We had Joker, Penguin, Catwoman, Riddler, Two-Face, Scarecrow and RahsAlghul. Let them get a new one. I agree not all of the villains were great, but there are many cool Batman villains ot there. What about Clayface? Bane? or that guy with the talking puppet? Think about it.