
The blank period not written in the original work is the the story of a hero that was once called a leftlover in THE LAST, Naruto Uzumaki's last story is Love.
I'm not gonna hold my breath when it comes to advertisers of the movie saying this is the last story of Naruto Uzumaki's because they don't know what the true ending of the manga really is!!!
For all they know it could be to them that this is last side story, based on the future, that they are ever gonna see from kishimoto again and are jumping to conclusions saying it is the end because the actual series is "ending".....
And from this translation we all speculate that the "leftover" it's referring to is Naruto.........but what if it wasn't?? What if the Final villain/ last sketch of mysterious guy was a leftover of the hyuuga clan and became a hero from some time in the past?? And now is somehow back for some plan involving hanabi, or in fact from what he is has heard the current hyuuga Heiress?? O_o meh..........maybe

lol