I've seen this described as a "reverse-Avengers", i.e., start with the ensemble already established, then break down the universe into stories focused on smaller pieces of it. It should work -- Star Wars has a huge fan base and as long as the "one offs" are done moderately well or better, they'll be successful.
Call me crazy, but considering all the books and animated features based on the franchise, I would not be surprised to see dozens of movies. An entire universe was created. They can tell an unlimited number of stories and only enhance the depth of that fictitious world.
It could be like Dr. Who in the quantity of stories.