Good chapter packed with action and emotion.
Kakashi and Guy are just in their limits or even beyond that, just fighting by sheer will power. Kakashi used up his chakra by using Kamui over and over again, he is only alive because Bee gave him some chakra in the middle of the fight against Obito some chapters ago. I suspect Kakashi vs Obito will end in a draw with both of them dead or incapacitated for the rest of the war. Obito will probably have a change of heart but only at death's door.
Guy will help Naruto a bit but not for much longer. Bee should have more action, Kishi is kinda forgetting about him....okay he is hurt but he has the eight-tails, he is healing as time passes.
Naruto vs Madara has everything to be epic. Personally i think it could be even better if Madara was like..."Hey Kid, let's just fight with our own abilities and see who is stronger...so, no wood jutsu for me and no Kurama for you okay?". Naruto with sage mode vs Madara with sharingan and rinnegan anyone?????!
- We still have two major questions...why did Kakashi killed Rin and where are Sasuke and Orochimaru? I heard some theories that they will meet the past Hokages...kinda doubt that but it would be COLOSSAL.