Originally Posted by Rikudou Sennin
I think the Kyuubi will help Naruto of its own accord. If Naruto explains the situation Kyuubi will understand that if it gets loose it would get captured by Madara and sucked up in Gedo Mazo. At least inside a jinchuuriki it can't be controlled. Caged life is better than no life at all. And in this case they could fight together and the Kyuubi could get a taste of freedom.
and the kyuubi WOULD FUCKING LOVE to get a crack at madara since he hates the uchiha.
The only thing Kyuubi ever showed respect to was Minato when he tells naruto to be grateful to him and the 4th. also i remember reading(most prob the 3rd databook but not sure) that kyuubi knows a lot more about naruto and his life, so maybe while this training occurs kyuubi will open up to naruto bit by bit. I think he'll also respect naruto eventually unless of course he gets extracted.