Board Thread:Naruto Discussions/@comment-1512913-20170417105433/@comment-25122992-20170417194943

Well, I'm not so sure about it. Maybe, Madara's/Sasuke's (and thus Indra's) chakra would stay in these eyes anyway, but it wouldn't be a large quantity of it, and after recalling how long it took even for Madara, the true inheritor of Indra's chakra, to get the mix of his and Hashi's (i.e. Asura's) chakra to awaken the Rinnegan, I somewhat doubt that Izuna or Itachi could really achieve the Rinnegan during their natural lifespan, even if it would've been longer for them than in the present storyline.