It seems Disney is keeping its options open with Star Wars. Shortly after they bought Lucasfilm, it was revealed that Michael Arndt had worked on a treatment for Episodes VII-IX and is now busy putting together the screenplay for part 7. Soon after news came through that Lawrence Kasdan and Simon Kinberg had been hired to write Star Wars scripts, which at the time were said to be Episode VIII and Episode IX.
That was never confirmed by Disney, and it appears the reason for that is because they may not be writing Episodes in the core Skywalker saga after all. According to THR, insiders claim that the writers will be working on separate projects that may either turn out to be used as the sequel scripts that will continue the Skywalker storyline, or potential spin-offs focusing on side characters.
Disney isn’t saying anything officially at the moment, but it looks like they’re hoping to ape what they’ve done with the Marvel universe to create inter-connected Star Wars movies, some of them official core films and others going off in different directions. The studio hopes for a new film every two or three years.