We'll have to wait. The juubi is probably going to reach it's final form, so it will be almost unstopable. I think naruto will enter his bijuu mode with the full chakra of kyuubi(maybe minato will return the other half to naruto) and use sage mode with it, giving him a great boost.
I think hashirama will use shinsusenju, bee will go in his bijuu mode, sasuke will go full susanoo, hiruzen will do some powerful jutsu, and tobirama will probably use a powerful suiton jutsu, like a great giant monster of water, or something.
Together, maybe, they will manage to weaken the juubi, and it will be sealed somehow.