How can the next Batman film beat this one! IS it possible?

I agree about Ledger's performance, but Hollywood's been getting better and better at sequels these days and I feel that some people might not be so iffy about a sequel if Ledger was still alive to continue as the Joker. Yes, he was brilliant, but that doesn't mean we can make film after film after film. Besides, it's never about being "better," it's about telling the Batman legacy in a new format and style that no one has tried before. It's good to love this movie, but another, possibly better film wouldn't be so bad.