Two things, first will Naruto eventually get the Rinnigan?
Second I hope that when the real Madara Uchiha comes back he realizes black zetsu has his own agenda forcing Zetsu to resurrect Kaguya a different way.
Author's response
No, I do not enjoy stories where a character that already enjoys almost every benefit of being the main character, needs even more poweups handed to him.
Can't really say one way or another, after all there's no guarantee Madara is coming back.