The rumors are BS, I believe. From what I can tell they are not that near far enough along yet, and also, those are choices that seem to have been lifted right off of message board wish-lists from the past few months. Particularly Hoffman and Jolie.
FWIW, both Johnny Depp as the Riddler and Seymour hoffman as Penguin are obscenely fantastic casting choices, and if Nolan announced it tomorrow I'd instantly be onboard with them both. I just don't think it's going to happen.