It is to late for NS to be canon. if it were going to happen, it should have happened in the first place. This ending revealed all the problems that were starting to reveal themselves as the manga was ending. That being, Kishi can't actually write. He relies on others peoples ideas to push his story in a good direction. If his first editor had stuck him with, it still wouldnt've been Kishi's story, but it wouldn't be as bad as it is now. That's for sure.
Even if Kishi redid the ending and made NS canon, it would still be bad and he'd be doing it for all the wrong reasons. I take no pleasure in that. Nothing Kishi writes can be better than the content that fans have come up with now. Anything he does is just weak sauce, trying to gain more money.
Maybe some people are willing to hand over the money and the praise to that man, but I am not. Nothing that man does or says will make me happy or will satisfy me. He has failed as an author, anything he does is tarnished.
I don't understand the people that still want NaruSaku to be canon AFTER this stuff. Like??? I've noticed that it's mostly the facebook brand of people. I don't know what's in the water there, but it's the worse place to get involved in the NaruSaku fandom.