- Before Itachi died, he had left a legacy just in case Sasuke did fully turn evil and Naruto had to put him down.
- There was a survivor of the Uzumaki massacre who wanted revenge for his clan, and became the next main villain for the upcoming generation or even when Naruto finishes Madara and Obito.
- Tobi had been Izuna :D
- Jiraiya was still alive
- Sasuke and Naruto fused