I'll go ahead and put mine out there.
The power of the Sage of Six Paths floods Naruto's body. He regains his chakra cloak and practically teleports to Madara's location, *****-slapping him with the force of a planetary collision. Madara is sent miles in the opposite direction, where Naruto follows with an immediate death punch to the chest. Everyone marvels at Naruto's OPness. Sasuke dies or something, but only Karin notices. The end.