Board Thread:Naruto Discussions/@comment-24098614-20140411233703/@comment-17623-20140601140312

The only way he could possibly become Hokage is that, if Naruto was dying he said "Yo dude, I'm dying. Imma make you Hokage. Kay? Urgh."

There is literally no other way, unless Kishimoto just decides to say (#*# it, and decides to turn the manga into a crackfic.