Sasuke could finally regain his Rinnegan in Boruto. This power up could allow him to compete with other characters.

However, this wasn't enough to take him down. When Sasuke was put ... but who stood out as the strongest of the lot in Naruto? Sasuke's Rinnegan could do everything that Madara's could.

Naruto lost Kurama's power against Isshiki, while Sasuke's Rinnegan was taken by Momoshiki ... Both of these things require certain plot points to take place. For instance, in order for Sasuke ...

Sarada needs the Rinnegan if she wants to scale up to the stronger enemies in Boruto. She could obtain this power.