I don't know, on page 14 Madara's left side was melting and you could see his left arm was decapitated but in the left panel he healed himself and got his arm back, at this point he can regenerate entire limbs.
It looks like naruto and Sasuke didn't get too much of a powerup, from what it looks like there are no chakra cloaks or anything. The fact that Kishi didn't show us Sasuke close up makes me suspect he may have gotten the rinnegan, it might've just been saved for next chapter.
If Naruto did finish him, I wouldn't be dissapointed, but I think most people wanted fully healthy Madara vs Naruto and Sasuke