Face it, disney will milk this cash cow until it is dry and people get tired of "yet another" Star Wars movie. And then they'll milk it some more.
They spent a lot of money buying the franchise, and even though will make back many times more, it will have a big permanent place in their themeparks, all without paying anyone for licensing anymore.

I think it will be a bit like Star Trek movies... the novelty will wear off eventually, after 10 or 12 movies.... and then we will see a reboot, which won't appeal to anyone older than 20, who had grown up on the original Star Wars movies and prequels.