Hmm, probably just Miller talking out of his arse again, but I certainly hope its true. Only thing is, they need to retcon Big Daddy's death. Cage was too cool of a part not to have in the film. His cop friend said that Hit Girl deserved a childhood and that seemed to resonate with Big Daddy, so just say he staged his death following being burned, nursed himself back to health and stayed out of her life to protect her. It would definitely work better than Whistler's revival in Blade 2 (which all things considered wasn't even that bad).