I have a question. How would you react if one of these days Kishimoto himself comes out and tells us exactly what happened and maybe even redo the ending the right way.
Lets say that he releases a new volume and maybe a movie and does it right. Would you accept it? Would you be happy? If you dropped it like I did, would that make you go back? Will you go back but still won't truly accept this new version because of what happened? Would you pay for it? Would you forgive him? And if not what would it take to forgive him?
At this point, whether he was sincere about it or not, it would only look like another desperate attempt to pander to and win back the "old breed" of the fanbase to make more money, so he would most likely also have to do it all for free, on his own time and without SP/Shueisha support, to dispel that thinking. It would also require re-working of pretty much everything since the start of the Pein Arc (given it seems to be largely agreed that's where the story began its big downward tumble) and make it clear that the narrative is not for NH/SS, and to give Sakura further, proper development, and so on.