What if the Elder Toad Sage is his brother? :OAt first I thought it was the sages brother,but apparently it's the Elder Toad Sage.
That would actually be really hilarious especially with the theories that the brother's descendents created the Hyuuga and Uzumaki Clans. Basically Naruto then met his Great-Great-Great......Great-Grandfather?What if the Elder Toad Sage is his brother? :O