Board Thread:Naruto Discussions/@comment-26127155-20150803235010/@comment-734582-20150807163527

GreatestSin wrote: i doubt that he was pressured by the editor to finish his work... I think he did it to end the Manga at number 700. After all, the number 7 is a recurring special number in Naruto (team seven, Seven ninja swordsmen, "lucky" chromei (Seven tails), Naruto as Seventh Hokage).

I hope we actually get to see a Kaguya "gaiden" (anime filler) that explains in much, much greater detail the stuff that went on back then.