With byukagan sasuke will graduate to a master of tai justu min justu and gen justu . Why don't think make sense too you ? The rinnegan is played out : I strongly believe if his eyes evolve into a byukagan at base form , and he can still use his ems indefinantly explain what will stop him from taking his already powerful justu to the next level , I'm taking about susannoo with more accuracy , black flame trigram palms . Extra justu instead of this rinnegan that seems to me is just a troll from the beginning