Its getting TENSEE! >=D Madaras worried bout obito anticipating him and we see at the end there that hashirama admitted he is stronger so he definately got another plan to control the juubi and my guess is that strange looking staff in the Right hand of Rikudou Sennin that you would see in pictures of Rikidou Sennin facing the Juubi, thats the only tool i hvent seen.