Star Wars regardless of how weak the prequels were was a creation of George Lucas's and in terms of films the franchise should die with him because it is his, regardless of quality. I feel that way for anything when the creator had total control over the creation. There should be no Harry Potter books without J.K. Rowling and no Middle Earth books without Tolkien and so on.
Don't mess with stuff like that. If it is some corporation creation nonsense like Star Trek who the hell cares.
Regardless how good a writer/direct in 20+ years may be the Star Wars films were Lucas's and it should remain that way(and it just so happens it likely will). I don't have to love a creator's work to know that someone else shouldn't meddle with it. Star Wars is George's baby, let him have it.