i think....the story will continue.....they will take a new story of Konohamaru who is the Naruto's Favorite Pupil.....and naruto will became the legend in the series..........i think.............
but before that I also suggest that sasuke will join with madara and when madara has been defeated after long series ..sasuke will have the madara's abilities which madara will give all of his power to sasuke in the end.. and somehow madara convinced him to take revenge for his clan and he might became against the village. thus leads to continuing the story for Naruto And Sasuke for eternal rivalry.