Something like... Sasuke will do a certain sacrifice (not necessarily his own life) so that Naruto will awaken his own Rinnegan and become the next RS.
Naruto. He'll obviously pluck out sasuke's eyeballs and eat them, aswell as drink the heavenly milk from Tsunade's boobs! And then he'll get enough Senju and Uchiha Dna to unlock the Rinnegan!
Naruto. He'll obviously pluck out sasuke's eyeballs and eat them, aswell as drink the heavenly milk from Tsunade's boobs! And then he'll get enough Senju and Uchiha Dna to unlock the Rinnegan!