The expectation with Uncharted is that it can be an ongoing franchise as long as people want more of it. All these stories are self-contained. You don't have to play the last one to play this one. Obviously, you're going to get a little bit more out of it if you have. But [Nathan Drake]'s going to have a lot of adventures, thank god."
Creative director Amy Hennig also discusses the nature of working at Naughty Dog, where she describes the experience as very "independent" — there are no producers or managers within the company meaning everyone is free to work on their own terms.