I really doubt it. Sorry, but looking at the track record, they rather die, broke, but have their pairing be canon than to make money. How do I know this? From the simple fact that the fans have expressed what is wrong with the series and they keep on doing the exact opposite. Even for pro-SS and NH platforms, they seem to do the exact opposite. Worse, Kishimoto shows he doesn't care.
Whether it be because of his father's death or because he got bored with it, Kishimoto has stopped caring about Naruto a long time ago. He doesn't listen to what fans have to say, he doesn't care to understand why his series has become trash, and he certainly won't retcon anything like Toriyama has.
If he does retcon...he won't change anything to NS. Why? Because, like I said, the fans think it was the better option, but he does the opposite.
"We love Neji." Kills him off
"We want Naruto to become hokage." Makes Naruto miss his own coronation and barely become anything like Hokage
"We want a team 7 reunion" No such thing really has occurred.
It is the greatest anime tragedy ever in history
You know looking at what they've done so far, I would agree with you that they would rather die with their decision, but I have to disagree with you because one simple reason. Why did they chose this ending? The answer to that is greed. Money to be more precise.
Everything about the ending from how it ended, to what happened in it, to what came from it, screams marketing team. A decision not done to end the series and then leave room to continue it or spin it off in something else, but a decision done at least in their minds to squeeze every single penny from it and continue to go to bank for years. Yes, we all know that their choices were idiotic, but keep in minds such decisions are not made and weren't made by people who know what was best, only what they thought was best.
And you know these choices well. Like making the child of Naruto a child of Hinata because they thought Hinata sells more than Sakura does, and all the others like putting everyone together to make kids in order for Naruto's child to have buddies, etc.
Kishi wanted out for whatever reason whether it was his health mentally or otherwise, boredom or not liking the decisions that were made above him we don't know, but it's clear that he wanted out. That's became obvious from the short battle that Naruto and Sasuke had and from the rushed ending chapter. So with him out of the picture, the ones that were left did and still do what they want.
It really is the greatest anime tragedy ever in history. Thus far anyway.
But sooner or later greed comes into play because at the end of the day it's all about money. It's a business after all.
I mean do you think that Toriyama just decided one day out of the blue to retcon his ending and did it out of the kindness of his heart? Of course not let's be honest here, someone came to him with a big pile of money and to do it because they in turn wanted money.
When will this happen to Kishi? I do not know, nor do I know if that's actually necessary or if it will be necessary at that point. It's not going to be anytime soon that's for sure, but eventually. The greed of men always comes on top.