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According to the 34th Shuiesha Weekly Shonen Jump, the next Week's Shonen Jump has an important announcement for Naruto fans.

Naruto Movie 10 announcement in 35th Weekly Shonen Jump
Later that day a counter has been set on a Naruto site named as naruto-movie.com which points to the release date of 35th Weekly Shonen jump. It may be a coincidence, but it is a possible scenario unless the announcement is about the ending of manga as author has already stated that Naruto is in its final phase.
For now it is safe to assume that the important announcement is related to the upcoming Naruto Movie, so far 9 Naruto movies have been released and it will be the 10th movie.

Update: Last Naruto Movie Announced