It's why I think it was after that that the ending was changed, until the beginning of this year I think it was planned to be NS and SK but for whatever reason it got changed, how much of that is on Kishi we may never know nor may we never know if I'm right but I just can't accept that more time was spent developing the red herrings than the main pairings.
Kishi's prioritising of false commitments and hopes was certainly the ill-advised method to go about building a foundation for relationships deemed unsupportable, derogatory, and cruel until the very end of the manga. There was so much more that he could have done. Would it have convinced any of us? Make us believe that a reasonable commitment filled with love, laughter, and happiness was achievable with NH/SS in whatever span of time this war originally intended to use? In all likelihood, no. The evidence even prior to these last few arcs was so strongly in favour of NS and the SS/NH dynamics so badly disjointed and neglected that no rational person who was capable of putting aside their adoration for a character would be satisfied in watching these pairings come to life as we're seeing now with this movie.
Kishi sold himself out in order to appeal to the grabby businessmen at SJ/Pierrot. He's lost my respect as a writer because he turned his back to the motives and ideals that helped defined what his manga was about. And I wonder something else. If money was so important, why not take another approach like the one seen in RtN? It was a successful movie in spite of the heavy emphasis on NaruSaku and negligible screen time of Hinata (and her precious voice actress). Did the marketers overlook this detail? Or is it their impression that overplaying this Nana Mizuki person will somehow compensate for the utter humiliation and disgrace that the producers and Kishi have brought upon their series? There's no denying how much of an emotional and moral shockwave is being felt as a result of the ending and the direction of the movie by the admirers who supported NS or were disgruntled over the stupidity of it all.
Will this deter the unsatisfied anyone from watching a movie that's being used as a cheap, shameless cop-out to justify a bad ending? I would hope so. The fans from overseas certainly don't appear to be as concerned with this Nana Mizuki's unjust and undeserved spotlight. And surely not every fan of Naruto in Japan would allow themselves to become entranced by this flagrant attempt to squeeze more money out of them. If they're going to watch this movie regardless then they should at least be made aware of the sacrifices used to have this setup with the characters and the plot arranged.
I know The Last has been in development for 2 years but that doesn't mean that story has been in development for 2 years, they were making the movies yearly prior to it so it's not a huge stretch to think The Last's story was changed when the pairings were. Because correct me if I'm wrong but wasn't the movie to come after RtN meant to be about Sasuke?
I know that Kishi did express interest in wanting to dedicate a whole movie to Sasuke and his morally questionable adventures. But what the mangaka wants isn't always the deciding factor in which plot concept is chosen during the planning process (events leading up to this movie are a clear example of profit and popularity overriding cohesion and logic). Sasuke has often ranked above Naruto in the polls and I'm guessing that he has a very strong following in Japan (no doubt it acted as a major factor in allowing the abomination that is SS to come alive). But ultimately the series is still about Naruto and his story. So a movie that's completely shifted attention to the deuteragonist may not earn the companies in charge the revenue they're aiming for if the titular character isn't relevant or shown in the publicity leading up to release.
For me, I would like to believe that Kishi's original intentions, the true desire to see an ending separate from this one, is what spurred him to give all of these prevalent NS moments and hints in the final 150 chapters of the manga while trying to discredit SS and NH as much as possible. He might have eventually bowed to editorial and executive pressure, but he wanted to ensure that the atmosphere and setting in the epilogue was as ambiguous, dissatisfying, and erratic as he could make it. It wouldn't atone for the breach of trust(nothing short of an interview offering his admission of sorrow for this being the ending he did not envision and the promise to create the proper finale would make amends), but it would restore a little of my faith in his character as a writer and artist.