In other words.
Once they dealt with the Akatsuki's problems.
If he put all other factors aside.
Naruto alone could sweep the entire Shinobi World.
As easily as Uchiha Madara and Senju Hashirama had in their day.
And with Sasuke, who was about to obtain the Eternal Mangekyō Sharingan, and Neji, who would soon fully acquire the Tenseigan, helping him, any threat would be reduced to nothing before the three of them's overwhelming strength.
There was nothing wrong with entertaining such an "arrogant thought"!
However.
Naruto still kept his wits about him and remained calm at all times.
After all, he could only afford to be arrogant toward the "ordinary people" of the current Shinobi World!
Naruto had always known exactly who his ultimate enemy was, and whom he most needed to guard against.
Perhaps Kaguya Otsutsuki's resurrection could still be prevented.
But Naruto felt it would be difficult to stop Uchiha Madara from being revived.
The Impure World Reincarnation Jutsu alone.
Was already a very difficult technique to guard against.
Although Naruto had deliberately instructed Sasuke to keep a strict watch on Yakushi Kabuto, as well as Orochimaru's research and experimental subjects, before Sasuke dealt with Orochimaru, Kabuto was still missing. That alone could easily become a hidden threat. And there was another reason: Naruto didn't believe that if Kabuto was gone, no one else would know how to use the Impure World Reincarnation Jutsu.
As a forbidden technique developed by the Second Hokage.
It was a jutsu that belonged to Konoha.
To put it plainly, Uchiha Madara had had ten thousand opportunities to obtain it over the past several decades.
Naruto didn't think it would be particularly difficult for Madara to arrange for someone to use the technique as a contingency, temporarily "reviving" him in the form of