Let's clarify a bit here about the JF
-On the Naruto's stage were present, as guests, Kishimoto Masashi and the author of "Rock Lee's Springtime of Youth" Kenji Taira. And Naruto, Sasuke, Sakura and Kakashi's voice actors, of course.
-They asked to voice actors to draw a war scene that have impressed them the most. For some twist of fate, Sugiyama and Nakamura (respectively, the Sasuke and Sakura's VA) drew the scene of Sasuke where he said "I want to become Hokage". Therefore, Naruto and Kakashi VAs teased them (Kakashi's VA: "Isn't Sasuke and Sakura getting awell together?" Naruto's VA "Sure!") in front of the audience and they blushed a little. I would venture to say that've flirted despite Miss Nakamura is married LOL.
-The VAs have then stage some war scenes. Sasuke and Sakura staged the scene of Sasuke's arrival on the battlefield, the one where there's
Sakura: Sasuke-kun?!
Sasuke: Sakura, uh...?
Then you have other scenes but they haven't provided any other details. A tweet mentioned that there has been some cute NS, NaruSasu and NaruKaka situations.
-Kishimoto said that he wouldn't be certain that next year there will be a Naruto stafe at JF. However the thing about "Naruto could end within a year" was wrong.
-Kishimoto said that he exaggerated to make Madara too powerful. And since Naruto's the main character, he needs to carry out the plot and will have to find out a way to defeat him, a way that at the moment he doesn't still know how. He will have to talk with his editor about that.
-They've also asked him if the statement from Sasuke about the desire to become Hokage was something that he has planned since a long time.
Kishimoto-sensei said yes but he didn't know how to take it out yet. And he also knows that a such thing would have surprised the readers. Furthermore, he will explain further the reasons behind that surprising statement, by going to explore Sasuke's mind.