Board Thread:Naruto Discussions/@comment-5054236-20150717003436/@comment-26675690-20150718202509

I don't think so since Madara had both EMS and Hashi cells for decades before he awoke his Rinnegan. I'd say given some time Obito would have awakened it but not Danzo since they aren't his eyes. Sasuke got his immediately because Hagoromo's chakra (Indra + Asura) was already mixed so his body didn't need to do it himself like Madara.