i doubt naruto is the 4th reincarnated, what makes me think this is that orochimaru was about to summon forth the 4th to fight Sarutobi, and if the 4th were actually naruto/ in naruto, his soul couldnt have been in that coffin, i figure the 4th sealed Kyubi with a suicidal sealing technique much like Sarutobi's but i figure with the plethora of seals/jutsu in the world of naruto already, even tho we've only seen/heard of 3 or 4 countries and havent really even seen their jounin, i would imagine that there are several types of suicidal seals that he could use on kyubi being the strongest ninja out there

also kakashi, cool your jets, i can tell u'r new, u care too much about off topic things, u shouldnt talk anyways, not like it takes forever to get 137 posts, i dont even post here much and i got 113, and i nearly had jounin status before they redid the forums