Why It Would Rock: Pattinson is currently starring in The Rover, a 'post-apocalyptic' crime story set in the Australian outback a decade after the fall of organized society, where one man is looking to get revenge on a violent gang of outlaws. Mad Max is also all of those things. It would be an easy transition for Pattinson to make, and this time he would get to be the badass shotgun-toting hero.
Why It (Probably) Won't Happen: Because they are already making Mad Max and it's set to star Tom Hardy. Tom Hardy is great and all, but he's Tom Hardy. Nothing can hurt him. Pattinson, on the other hand, could bring just the right amount of vulnerability to the role to make us legitimately fear for his character.