Bandai Namco has opened a countdown teaser website for an original new title that it plans to announce in the November 15-due issue of Monthly CoroCoro Comic.
Here is the main visual on the website:
Bandai Namco recently trademarked logos for something called “Ninja Box” in Japan, which matches the design of the main visual. Furthermore, the URL to the teaser website includes the text “project-n.”
Update 11/12/18 at 8:32 a.m. The latest issue of Monthly CoroCoro Comic has revealed this to be Ninja Box for Switch. Read more here.