See I never got the impression that The Dark Knight was leading towards Harley Quinn. I just don't see her as a character that Nolan would want to include.

I tend to agree with JL at this point, that with all of the fan support and clamoring for Riddler Nolan may almost be forced to include him. So many people are anxious to see the Riddler in this new Batman setting. I'll admit, that I loved him even in Batman Forever.

Personally, I really want The Scarecrow to quit being such a chump. He's always been my favorite villain and he's one of the few in the comic books that has actually been able to beat Batman. But in the movies he's little more than a joke now. I would love for him to do something more important in this last film, but I have the feeling his time is over.

Firstly, I'm still on the fence about whether to even expect Two-Face. I'm just not entirely sure on that.

Moving onto the Riddler, first let me say Jim Carrey did an amazing job with the Riddler. Secondly, as I said, I think there might be some angry people if Riddler doesn't show up. And even moreso, I think people would be even angrier if Nolan decided to just tack him on for a very minor role. It would be an almost "I know y'all wanted it, but that's not the story I was going with, but here's a little taste so you can see what you would've missed" type slap in the face almost. That being said, I'm convinced it will be Riddler.

I've also heard the rumors about Penguin but Nolan and Goyer have come out and flat out said that Penguin (nor Catwoman) would be in their movie. So...yea, I'd count that one out. Interesting to note here, they have not made those remarks about all the Riddler rumors which far outweight the previous Penguin and Catwoman rumors.

As for Scarecrow: Yes I would've liked to have seen him be much more powerful of a character. More haunting and menacing and twisted (not too far off from how they did the character in the Arkham Asylum video game). However, I will have to say I'm pretty sure that character is done. I doubt we'll even see him in the third movie as I really think that whole "Batman giving him a dose of his own medicine" was the nail in the character's coffin for the franchise.