Let's say a Hyuuga and an Uchiha had a child (male). It is known that all Hyuuga automatically inherit the Byakugan. Since the child is an Uchiha, couldn't he also awaken the Sharingan and maybe even evolve to the last stage, Rinnegan? (As long as he has a brother, that is.)
This was just something on my mind, not saying it's true.
This was just something on my mind, not saying it's true.