So, we only know that Hardy is playing "the male lead. Will it be the Mad Max, made so iconic by Mel Gibson? Or will Max have taken on some kind of mythological, Robin Hood like status in the barren wasteland, and someone simply takes on the title? It could go either way (but hopefully not the way of Kevin Costner's The Postman), and I'm excited that Hardy has the part. He's been one of those actors lurking under The Really Big Time, and this could be the film that pushes him into stardom.
Theron's role might be the biggest and coolest surprise. She's a big enough name that I can't believe she'll be shoved into a corner as The Wife of Mad Max. Will she be a post-apocalyptic warrior too? I hope so. With so few remnants of humanity left, you need all the badasses you can get. It would be nice to see that reflected beyond Tina Turner.