Well last week I watched Naruto Shippuden Episode 288 and it seemed Gai's and Kakashi's friendship won the day, it may be hinting that there is some hidden 'power' by having friendssss..... Anyway back to the point, well at the moment Madara practically has no friends because lets face it Obito doesn't really seem that close to him.

My theory is that Obito will shed his emo wings, realise Madara is just a complete douche and join team Naruto. At this point Madara would of become the 10 tails Jinchūriki but no matter how much chakra reserves or power he's got, he just cannot defeat the power of friendship. The end.

Hope you liked this thread!