He has become a great businessman.
he know there is money in this.
For now he's into selling the product in theatre if he's asked if there is a extended cut he will say there is bits and pieces but nothing major GO SEE THE MOVIE IN THEATRE!
Then when the BR comes out it will be, well i came back to it and tought some stuff needed to be adressed here is the extended cut.
The worst that can happen is that he goes all BLADE RUNNER on us and we get to see extra stuff in 30 years after all the sequels...