Naruto “Next Generation” coutdown

It is been announced on the official Shueisha’s Weekly Shonen Jump website that a countdown has been created for Naruto, author by Masashi Kishimoto, titled “Next Generation”. The site has some of the characters in silhouettes. The countdown will end on December 19 which will also be the same day of the Jump Fiesta convention. The announcement will begin from 3:00-3:30 PM.

What do you think the announcement is? A new anime series? Movie? Manga series?