Board Thread:Theories and Speculation/@comment-25093611-20160322113057/@comment-26388300-20160324041700

I don't believe that Kakashi having the Rinnegan would be too taxing on his body; loopholes are written into things all the time to accommodate in Naruto. In example, when Kakashi actually acquired both Sharingan, he became bad ass but, according to the rules of the story, he still shouldn't have been able to wound Kaguya because he lacked senjutsu. So what happened? He was written as suddenly having some Six Paths power from Obito's eye. I say: just make that a permanent increase in chakra and allow him to keep the eye. He lived most of his adult life with an eye that wasn't his own; I see no issue with him continuing on that way lol.

I'd have loved for Kakashi to be a full-fledged powerhouse in his tenure as Hokage. Imagine an entire squad of elite rogue shinobi hearing that the Leaf Hokage possessed the actual eye of Madara Uchiha. While on the open road they attack, hoping to defeat him and take his eye. But using his new powers, Kakashi simply annihilates them.