With Sasuke gaining EMS, Nagato able to awaken/use Rinnegan, and Sakura as a great Medical Ninja, it'll be epic if Edo Uchiha Madara wins againts the 5 kages then gets free from Kabuto's control like Itachi. Naruto fights Sasuke and able to convince Sasuke to return to their side. Naruto, Sasuke and Sakura confronts Edo Uchiha Madara but their team wasn't strong enough. In the intense battle Naruto losses his eyes like Kakashi, with a fast decision Sasuke gave his eyes to Naruto with the help of Sakura. Naruto then awaken Rinnegan and fight Edo Uchiha Madara head to head. But with other ninja's support, Naruto gained further advantage and won...THE END.
Note:As the title states. This is some crazy out of the box idea. It doesn't need any proof whatsoever. Any comment/reaction is accepted.
Sure this is possible! But.. I think sasuke and
naruto are strong enough to fight against only 1
Madara (Assuming tobi is out of picture by the
time). And so there is no need of doing this. In
kakashi's case their team wasn't strong
enough (also very young), and so the time came.
Crazy but plausible but you left out the other
sealed tailed beast. I believe for the prophecy to
come true all of this i.e the rinnegan, chakra of
all the tailed beast and a strong will for good
will come together to be one. More
importantly, I believe nagato's rinnegan is
the actual eyes of the So6P casted into the future