Here is another prediction all the credits go to www.narutokar.blogspot.com i made some minor changes hope you like it :D
Just as the 8 tails is about to hit the 10 tails with a bomb, the 10 tails holds up a giant Susanoo shield and deflects the blast. Madara is holding a hand seal, and some how he's able to wrap his Susanoo around the whole 10 tails giving the 10 tails new armor. The 10 tails throws a small bijuu bomb at the 8 tails but Kakashi warps it.
Obito: Impressive *throws shuriken from his sharingan at Kakashi*
Naruto/9 tails extends a chakra arm and grabs Kakashi before the shuriken hits him
8 tails: damn, what the hell is that
Kurama: Not even I knew that the 10 tails could use susanoo like that...
Obito: You should be more conservative, I don't want you wasting the 10 tails' power like that.
Madara: (while making a hand seal) No, it's the opposite... I'm the one giving the 10 tails MY power.
Madara: (evil grin) that idiot, Kabuto his name was? he essentially made me a giant inexhaustible battery for the 10 tails. We don't even need the other beasts this way.
Obito: Well then...
Kurama (inside Naruto): Naruto... do you feel that?
Naruto: Yeah... that dead Madara is funneling his chakra into the 10 tails
Kurama: Yeah, and he doesn't seem to be letting up either. That must mean... that edo tensei jutsu is allowing him to have infinite stores of chakra. That means the 10 tails..
is impossible to defeat...
Naruto: What do we do?!
Kurama: This time Naruto, I don't think there is anything we could do. This is a much worse situation than I ever could have intended. With that Susanoo we can't even try to knock Madara off the 10 tails...
Kurama: Naruto... there is one thing we might be able to do, but it's a long shot.
Naruto: Yeah? spit it out because he's attacking! *the 10 tails goes on the offensive, 8 tails and Naruto/9 tails mode defend themselves*
Kurama: Do you remember the chakra you got from the other tailed beasts?
Naruto thinks back to the fistbumps he got from 2, 3, 4,5,6, and 7 tails from like 20 chapters ago.
Naruto: Yeah! but I have no idea what do do with that chakra, plus we don't have chakra from the other 2 beasts do we?
Kurama: heh, no, I stole chakra from the 8 tails a while ago, and...
I stole chakra from the one tail years ago when you fought that kid Gaara.
Kurama connects fist with naruto and they both focus
Kurama: okay Naruto, this is where it gets tricky, because I'm not sure what's gonna happen before that here take these first it's the rikudou sennins staff the most powerfull weapon of him
Naruto: We will save this world
Kurama (making a handseal - the 10 tails is about hit the 8 tails with a bijuu bomb): NOW!
All of a sudden, blinding light makes the 10 tails recoil and fall back, as the light begins to dim down the outline of a young man holding a staff can be seen.
Obito and Madara: what?!
Madara:.. that... can't possibly be
Naruto steps out looking stronger and taller looking like the Rikudou Sennin and holding his staff
Madara: Rikudo Senin!?!?!