Well Disney and Lucasfilm are paying a group of people to keep the continuity consistant and keeping it so things don't go crazy. If some Hollywood elite does want to do a crazy movie, those paid people are their to keep Star Wars as being Star Wars. If the idea is too out there, then I imagine it gets turned down, or negotiated into something that fits. It could be something simple as a name change, or a change it when something happens, but they like things to be within the frame of all Disney era Star Wars (multi-media is everything now. Multiple products, multiple money.) Unlike Marvel that can do and has done seperate media works side by side for ages, Star Wars has mostly be marketed as being one Universe. Its fanbase (which includes a lot of employees at Lucasfilm) know that and seem to enjoy that.
The larger question would be, what possible Hollywood elite, at this point in time, could come up with a Star Wars idea out there enough to get Disney to just go with it? Who is bigger than Star Wars? Who could possibly have more draw than having that title on the big screen? And would any of them even try such a thing? Most that I can think of that would want to get involved are already fans of the older films and would rather play in the universe than make more waves than Disney. Especially since they now have a specific framework for what is Star Wars canon.
The larger question would be, what possible Hollywood elite, at this point in time, could come up with a Star Wars idea out there enough to get Disney to just go with it? Who is bigger than Star Wars? Who could possibly have more draw than having that title on the big screen? And would any of them even try such a thing? Most that I can think of that would want to get involved are already fans of the older films and would rather play in the universe than make more waves than Disney. Especially since they now have a specific framework for what is Star Wars canon.