I find it hard for Boruto to surpass him, and I don't think that Naruto will stand still either because new enemies will pop up, and Naruto won't stand pat doing nothing to get stronger remember in the canon there were parts of his training that were still missing he can still be stronger than he is right now.

I believe in the series theme of the younger generation becoming stronger but this relates to normal Ninjas, and Boruto is classified as a normal Ninja in my view but Naruto right now falls in the Dragon Ball Z category without the tails and not being a Super Saiyan because anymore stronger, and this guy can become as strong as Goku in that movie called Super Saiyan God.

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