As we can all see the Juubi will have nobody controlling it now which I think it will start to rage. If you notice the page with Kakashi talking about how much more powerful his time space jutsu becomes while having the nine tails cloak.
What do you think will happen at this point?
I think he will send it to the other dimension for the time being since he has proven he can teleport something that big with the right amount of power. I say this cause there would be no reason for Shikaku to talk to Kakashi about it and waste a page if it didnt mean anything for their plan of attack. I think they will put the Jubbi off for after they seal Madara.