Considering the schedule and the planned reshoots, they did not get anywhere close to 90%. And even if they did, Disney/LFL still controls the release rights. We only see director’s cuts that the rights holders see profit in releasing. Blade Runner was one of those movies that was more than 90% done when the studio took over. We didn’t see a director’s cut for 10 years. We didn’t see the Director’s cut of Star Trek: The Motion Picture for even longer. Some we get right away, some not for years. Depends on the quality of the original and the quality of what the Director envisioned. Copyright really doesn’t recognize a Director’s right to squat. The movie belongs to the Producers.