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

Beginning with Sasuke Uchiha and his ever-evolving Sharingan, the list of eye-based moves has continued to grow throughout the franchise. Despite all deriving from Naruto's powerful Å tsutsuki ...

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

In the case of Madara Uchiha, fans know that he gained the eyes of his brother, Izuna. Sasuke also took the eyes of his brother, Itachi, to gain access to the Eternal Mangekyo Sharingan.