Does this mean that Disney will hire John Williams to compose the score of the next film? That would be most interesting.
What are the legalities if they do not hire John Williams but use some of his score & themes in writing the new score for the 2015 film?
I hope they hire Williams. He's brilliant.
I doubt he has ANY say in what music they use in the future releases. He was paid to compose. I doubt he retains any actual ownership of the intellectual property. It's possibly Lucas might have given him some of the publishing, but I doubt it.
I think ownership of the music would move to Disney and they would be free to do with it what they wanted.