Well, after the Ten Tails is revived, what he'll do is questionable. I don't see anyone taming the beast but if Tobi somehow becomes the Jinchuriki, it'll take a whole lot more than Naruto, the fodder 11 and some randoms to kill him. But I don't see Tobi, or anyone, becoming the Jinchuriki of it.
But, its possible that Tobi might pull a Nagato. There's like 1% chance of Naruto talking Tobi out of everything, and then Tobi will sacrifice himself destroying the Ten Tails. That's one of the more unlikely scenerios.
Anyways, Madara is heading that way and I can't wait to here the dialogue between Tobi and Madara, the two baddest dudes alive. It'd be even cooler if they were brothers.