I think Madara is going to have a very hard time if he realy encounters Naruto... The Weapon he is carying better be something special, because if Naruto lands a hit or two on Madara he will be history ! ... of course this will not be easy to do because of Madara's Izanagi.
P.S. - To me the Rennigen won't give Madara any type of advantage over Naruto.
P.S. - To me the Rennigen won't give Madara any type of advantage over Naruto.