I feel that. Keep in mind, QT is super keen on JJ Trek, and I imagine his enthusiasm might take a dive if they tell him to re-cast it. One of the things QT was so pumped on was the casting of JJ Trek. I'm sure the performances to date informed his approach to the project. So it kind of makes no sense if Paramount said, okay QT, "here you go, here's your Trek film. Oh, BTW, you have to recast all of these iconic roles. LOL."