I am just shocked there are so many people supporting this...
I'm shocked people actually believe he will be cast based on some offhand comment about how he would enjoy playing a Batman villain. Several actors would love to do that. He just happened to be quoted on it. It doesn't mean he will automatically be cast, like Nolan is sitting at home on SHH and sees this story. "Get me Nick Cage on the phone immediately!" People here need to get real sometimes.
That being said, he's had some sh--y films, but so has everyone. Yes, Heath Ledger has had some terrible movies, he's not as immune as everyone likes to think. Cage just happens to do them in spurts of like 3. Wicker Man, Next, Bangkok Dangerous.