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- Sep 14, 2012
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Maybe the reason for keeping Kakashi in the dimension is that Kakashi may play a key part in Obito's end. I can see Naruto and the rest of the alliance preparing a huge justu to take down Obito (and maybe Madara if he's still not sealed). At this point all of the Hokages would have been sealed. Then when it seems as if Obito has completely evaded it, Kakashi will warp back and restrain Obito from evading the justu but knows that he won't have enough time to manuever himself killing them both in the process, which would finally give Kakashi the closure he has desired. Either that or he may sacrifice himself for Naruto as he has said it quite a lot.