Tell you what, I don't think I want a sequel, even from McMurty, Osana, and Lee.
I would probably not be satisfied with it, no way, no how. Why? Because I'm so set in my own mind what happens after Jack's death. I've finished the story myself.
I'm just going off my own feelings of never really being completely happy with The Empire Strikes Back and Return of the Jedi because I wasn't happy with where Lucas et al. took that story.
And here's a theoretical question: Are the successive Harry Potter movies really "sequels"? Aren't they each based on separate books? Just occcurs to me to wonder about this because Leslie mentions that they each stand well on their own. I've never seen any of them--or read any of the Potter books. They hold no interest for me.