Idea, One Piece the Poneglyphs tell the tail of the blank period what if right before that (something like hundred of year enough that people scattered would forget the origins) period the elemental nations existed? A catastrophe of global scale happened the dead where summoned again to destroy years of peace left behind by Naruto and Sasuke and the great Nations, A true end to the shinobi way and the elemental nations. In that time Kaguya was fused with Naruto after taking back the Bijuu, But because Naruto was their he kept their consciousness broke free from the control of the user of the edo and Kaguya to look upon the destroyed world before freeing the bijuu he decided to do something cruel to do something good, He cast the infinite tsukuyomi wrapping them up in the shinju tree roots and then with his god like powers used thousands of powers to wipe out the earth raise the sea burn everything to dust call upon the lightning to incinerate evidence of his civilization, in his work the bijuu protectors of humanity in their own way directed their powers to save life preserve it protect and use Naruto endless power to prevent the world from turning to dust. after destroying and restoring he directed the tree to put the survivors onto the land to live to he felt he had changed the world enough no great continent now only islands and great earth towering over him he looked upon his devistation before absorbing the tree and walking into the sea in is wake stood nine figures. He slept at the bottom of the sea the nine believe the fruit that started to show up after wards were narutos powers and the trees original power to bare a fruit working together and when a user falls into the sea the power is tryhing to get back to naruto so they lose the power and the seastone is rock soaked in narutos chakra from long ago (ie nature chakra). This is a idea go with it as you wish. the nine each shape the world maybe allowing for their domains to revitalize and then went to naruto until he wakes up.