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

From Madara Uchiha’s legendary strength to ... Sasuke achieved the full-body Susano'o, gained the Eternal Mangekyo Sharingan, Rinnegan, and Six Paths powers. Despite his past, he redeemed ...

Itachi Uchiha ... affected his Sharingan abilities as he reached a burnt-out stage. Eventually, at the end of the Five Kage Summit Arc, during a battle with Naruto, Sasuke's Susanoo disappeared ...