With Episode IX arriving in theaters in December 2019, there is a HUGE chance we’ll get that film by itself, AND we’ll get all 9 Skywalker Saga films together all in ONE set in May 2020. I know Disney will pay them a certain percentage in order to use Episode IV. That’s just a big paycheck for them for nothing but rights to one film.
It will be a collaborative effort with both studios, I’m sure of it.