Believe it or not, Lucas was pretty hands-off, not directing them. And they emphasized their reliance on “practical effects” in the marketing. It’s no different in the future that a big movie like these is probably going to have a lot of computer work, but they went for that aesthetic to at least somewhat of an intentional degree. So, CG gophers? Eh, not in the sense I know you mean it.

As has been the case at the conclusion of every film trilogy so far, it’s for all intents and purposes the end. But I suspect there’ll be more eventually. It’s never ogre.