There are enough so-called 'experts' doing what you mention in your post already.
In Reply To
In five years maybe, yes.
But I am sure they were wise and did some sort of agreement. It would put both directors in an awkward place when all so-called experts or wannabes would tell everyone how great everything would have been or how bad etc etc. Without ever seeing any of it in the actual screen. In motion.
It would neither be a service to them nor the fans.