He's the only possible person who can do it seeing as how he's got the same exact eye as Madara. That'll be his time to shine. Then Naruto will probably be the one to defeat Madara.
Also I think there is a yin and yang version of the Juubi's eye. One red and one lavender. One used to cast the genjustsu's the other created to negate it.
Also I think there is a yin and yang version of the Juubi's eye. One red and one lavender. One used to cast the genjustsu's the other created to negate it.