Re: Killer Croc as the Villain
I'd be laughing and annoyed at the same time if this happened. He's a supporting villain. And coming off the Lizard, I doubt we should see him for quite a while. And I hope not cuz I can care less about Batman fighting huge monsters. It's not my thing.
You also have to think of business. Which makes me think a suggestion like that is coming from a pure fanboy perspective and not a logical one. This is a multi-billion dollar franchise. No director or studio will agree to put the next (or the next few) Batman films with "Killer Croc" as the villain. The general audience would laugh at that name and won't be interested.
"Guys, what would be your reaction if Alfred was Batgirl in this movie? You go watch the movie, everything cool, halfway through, Alfred becomes Batgirl."