Naruto will never posses the rinnegan, the juubi won't be sealed in him, and no, he does'nt posses all the bijuu's chakra, they just talked/motivated him, that was the ''power''.
Now be silent until you have something other to say than the usual idiots here with ''HUUR NAROETU RINENGAN DUUR JUUBI DURRR SAGE OF SIEX PATHZ''.
Its getting old, was'nt original to start with, and will never happen.
As to Naruto holding Chakra from all but Shukaku and the Hachibi well I can only assume that when Naruto touched hands with them in naruto 572. Son had already said that he gave some Chakra to him, so its natural to assume they did the same.