QUOTE (Davidos @ Feb 19 2011, 12:50 PM) <{POST_SNAPBACK}>
^well he probably took the idea from what happened to sora (anime filler person) who had Kyuubi chakra implanted in him and he also went 4 tails...
I disagree.
I think that Kishi gave the anime team some ideas he had for the future so they could use it as material for some filler arcs and movies as a way to subtle hint at what was to come in the future of the manga. Think of it as advertisement for the future of manga canon like that OVA music video with the narusaku moment that came out on the first day of 2011.