TBH here i'm not quite sure if the plan will work or fail, on one hand it's what the ninja world needs(i'm saying this because no matter how you look at it, after the war there will still be problems, pre-war and post-war things too sort out, just like that time when Yamato used the fact that Kumo once tried to kidnap Hinata as leverage, the stains will never go away), but on the other hand like you said, we can't guarantee Sasuke will stay true to his path once it kicks off, despite abilities, as you pointed out he is in fact still human, and has in fact cracked more than once, putting a jaded person above the world isn't the best option.
Though i'd like to believe he would learn from his past mistake, but the lessons people take from experiences can greatly differ, just like Naruto and Sasuke, both were lonely, one craved acceptance, the other accepted destruction, i just thing the whole outlook is quite interesting. Lol i think i went of topic there, fail or not though we all know that Naruto will somehow save him, but not before considering his own ideology(i hope), i'm waiting for something along those lines(the real moment of truth)
What do you mean with your last sentence?
I underlined it.
Yamato used the fact that Kumo once tried to kidnap Hinata, but Naruto stopped the cycle of hatred that could have been between him and Nagato and him and Kurama. Yamato had still more to learn than Naruto.
Btw it matter if there will still be some problems in the world?
Besides, people can learn and grow from all kinds of experiences.
Among those are especially mistakes, or knowing what you could have done different.
The past of the shinobi alliance is especially something worthwhile to remember and to learn from.
That is not something one should erase, because you would erase all kinds of lessons to learn from as well.
Love can breed hatred, but you can change hatred into something else, like understanding or acceptance for example.
You can learn and grow from anger, hatred and such. It depends on how you deal with those emotions.
It may not be possible to create a world where there are emotions, but never anger, hatred or other negative emotions.
It may not have to be a problem that such things come into existence. They can also go away ago.
You have to work on dealing the right way with such things.
That is what the the right plan for the world should be about.
How can you deal well with them, when they happen. It does not have to be a problem perse, if they will always arise throughout time and never go away completely (they wont go away in Sasuke's plan either btw).
Things Naruto does are about not giving up. Believing in yourself and others. Trusting others. Accepting all kinds of happenings, also about himself (like at the waterfal of truth or in the war, knowing that he cant save everyone, like Neji for example, but that you shouldnt flee to a dreamworld or trying to erase the past or reality. Dealing with loss by keeping the real Neji for example, in your heart). Asking for help. Working together, rather than doing it alone.
Going to a process where you stop a cycle of hatred. Learning from the past.
Learning from each other. Such things make the world a better place.
Throughout generations, people could grow this way through learning, through teaching.
This would be way better for the ninja world imo throughout time.