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

Kagami was a skilled strategist. While his abilities as an Uchiha were far behind Itachi or Sasuke, his precise Sharingan control stood out. Even Shisui Uchiha acknowledged that Kagami ...

But there are two other abilities, that are so powerful, that they are forbidden for Uchiha to use. Izanagi and Izanami.