I think the statue will have everything it needs to reform jubi chakra, it has chakra from all the tailed beasts, perhaps not all of it from the 8 and 9 tails, but every type is there. so jubi will not be at full power, but I think at this point it's clear it's going to make an appearance. this thought is strengthend by kabuto's statement, apparently he knows more then madara thought he did, I'm guessing he is also aware of the requirements and risks to reforming the jubi. I think his statement is because he knows that madara is taking a huge risk by reviving the jubi while he does not have all the 8 and 9 tails chakra.
also shikamaru seems to think that madara can achive his ambition by using the kingin bros as "substitute" (there's that word) for naruto. but to be honest, shikamaru could not possibly know to much about the jubi resurection, it's requirements and it's risks.
the only twist I possibly see comming up is that madara can't control the jubi and it takes him over. and that naruto and bee will have to defeat the jubi, not madara.
also I'm wondering if kabuto is going to throw a wrench in madara's plans soon. one way of doing it that I see is stoping edo tensei on the kin gin bros the second madara unseals them from the pot and the gourd. that way the 9 tails chakra would once again be out of madara's reach and kabuto still has nagato, itachi and the jinchuriki in his list of unused edo summons. this group seems perfect to combat madara, itachi seems to know a great deal about him, nagato has the rinnegan (that makes sharingan and rinnegan vs sharingan and rinnegan), and the jinchuriki have to be strong also or else they could never have held the biju during their life. not to mention the fact that the other edo's that have not been sealed yet can easely be summond to his location.
of course madara is aware of the details of edo tensei, including how to stop it. but kabuto still has that other jutsu.
I think it could be interesting if kabuto decided to make his move now. with Bee and naruto on the way to possibly back him up