No, because HBO has more than license: they also have audience and money to pay for actors, animators, script writers and, most importantly, a marketing campaign. They could still make a ton of money off of it, just that George R.R. Martin wouldn't see a single cent of it! That's what I'm saying would suck terribly. [See: All the lovecraft works in public domain-- big productions based on the mythos are still making toooons of money!]