Sasuke Vs Madara and Naruto Vs Hashirama
I have a theory!
IN chapter 656 I have noticed Hashirama has 4 or five 5 black metal rods in him.
Orochimaru has stated that Sasuke will surpass Madara and Tobirama said Naruto would surpass Hashirama.
Recently The author of a manga called "Naruto" (Masashi Kishimoto) has stated
"The battle of Naruto and his comrades is in its final phase, in the truest sense of the term. About the Ten Tails, about Madara, and then, about Sasuke…I will continue to raise the tension without restraint, in every way I can! Please follow this story of a boy named Naruto a little while longer, I will greatly appreciate it."
So i thought that Madara would control Hashirama and since it is the end and since Naruto and Hashirama and Madara and Sasuke are rivals I thought Kishimoto would show that the new generation surpassed the old, with first hand action (Actual fighting). I think Sasuke and Madara will clash with Ps and Naruto will clash with all bijuus inside him against the 1000 handed wooden God Hashirama has.
Edit: Also as strong as Madara is, before he gets the fruit He won't be able to take on all the allies. Naruto, Sasuke and Hashirama can Take him mid to high dif but if you were to remove Hashirama from the alliance than it is a different story.