Son's Sacrifice? No Way in Hell, 'ttebane!

Only 5 years after Naruto's death, the Elemental Nations fall back into their violent proclivities. Kushina is distraught by her son's seemingly useless sacrifice. The Sage of the Six Paths is of like mind. He gives Naruto's mother the chance to change things for the better, not for the sake of the ninja world, but for Naruto's own. There is a catch though... full summary inside.