I know he has to answer to the studio, but what I mean is that he has enough clout and power that if he wanted an R rating he'd get one. He just doesn't give a shit, just like Kingdom of Heaven. He chopped up that movie like a piece of meat instead of fighting for the original cut. At least this one will be PG-13 from the get-go.
I am utterly indifferent as to whether we get a PG-13 or R rating. When the original 1979 film was shown on television, they only thing they removed was the profanity. Everything else, including the chestburster scene, was left intact. If we get something comparable to the original Alien(moderate levels of gore and profanity, no full frontal nudity), a PG-13 rating would probably suffice, without Ridley having to compromise his vision.