Re: Madara is just chilling..
I don't think the Juubi is just going to be a willing ally for Madara. Maybe there's some gratitude that Madara and Obito helped to reassemble the Juubi, but he isn't automatically going to jump in and fight Naruto just because Madara said so. Look back at the tailed beasts. At the best they've been evil and violent (Kurama, Hachibi), and at the worst they've been absolutely mindless fighting machines (3-tails). If the Juubi is violent and mindless he's going to attack whatever is closest. If he has reason and intelligence, maybe he understand the threat Madara poses and will try to fight back against it. In either case, he's not automatically an ally of Madara.
Originally Posted by asparticus
Once Madara seals the Juubi, it's still going to be Madara and Obito vs everybody else, but this time Madara is just going to be stronger (he was already too strong, so adding more chakra doesn't really change the equation at all).
Also, I have a very strong prediction that as soon as Madara seals the Juubi, he's going to stab Obito in the back and Obito is either going to die or he's going to join the good guys. It's just a prediction, but I bet that it's going to happen. We're going to find out what Madara's true plans are, and when Obito realizes he's been lied to it's going to be a major change.