Count me as another who is very glad to hear that Nolan is sticking to his guns and going IMAX/HD for TDKR. 3D is fine I guess, but not everything needs to be 3D.
Not surprised that the Riddler isn't going to be in the film... the solving riddles schtick doesn't seem like a good fit with Nolan's Bat-verse. I guess they could have changed him up, but why bother where there are other bad guys to exploit.
I'm still hoping that they can bring in some new baddies in this movie. I loved the fact that they started out with Scarecrow and Ra's, and I'm really hoping they decide to showcase someone 'new' in this movie. Batman has so many great villians, there is a treasure trove to choose from - Black Mask, Clayface, Firefly, Hugo Strange, Killer Croc, Lady Shiva, etc.