There is only one thing I am concerned about--he did not finish his Kyubbi-mode Rasengan! his training is not done, so why in the world is he--in terms of progression of the series--being let out into the war now? i hope Bee stops him and says something like "what are you gonna do against the current--as well as past--top ninja in all of ninja history without completing your strongest technique?" and gets him to at least finish his Rasengan before he heads out. Otherwise, i hope the power Itachi gave Naruto can somehow allow him to do it in battle without finishing his training with Bee (u know, cuz his sharingan could easily manipulate the fox's chakra into the perfect 8:2 ratio so all Naruto would have to do is what he would do for a normal Rasengan). i think the Itachi thing is unlikely cuz i don't think his power will be used like that, but it would allow the circumvention of his remaining training. just my quick thoughts....