I had a feeling that it was gonna happen too, as soon as he started being cryptic about a plan with a special Jutsu. I loved that it was such an oldschool Naruto thing to do (I bet he was practicing it to best Tsunade in order to take the title of Hokage, which is why he'd been over-practicing it in secret). xD I also loved that Sasuke went along with it.
On a bigger not, Obito's apparently back in the picture just as Sasuke's out of it. I'm curious how the confrontation with Kaguya is going to continue, because right now it's at somewhat of a stand still in terms of interesting developments. I'm wondering what her dimension traveling ability actually does, since there's that castle continually showing up in the background. I'm expecting that we'll start to see some stuff with the Edo Hokage soon to start to mix it up a little bit.
Additionally, I like the idea that they'd re-seal Kaguya, but that there's still a world to deal with AFTER that. They have to decide how to continue on with the Ninja World itself as a socio-political mechanic, and that's where I see the tension between Naruto & Sasuke potentially sparking back up a bit. I see this ending out with Naruto & Sasuke being left as figureheads, but also showing that the world keeps moving - even with them as who they are.
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