The theme of the game is “infinite possibilities” for fusions, which is demonstrated with Goku and Broly on the magazine scan, which also revealed that a manga project has been announced in Saikyou Jump.
The magazine scan confirms that characters from the anime, games, and card games can be fused as well, with possibilities of Dragon Ball Heroes characters and fusions making an appearance, too.
The magazine also features a fusion drawing contest, which will have its winner have their fusion warrior appear in the upcoming manga.
Dragon Ball Project Fusion is planned for release in Japan sometime in 2016 for Nintendo 3DS. We’ll likely get details along with the game’s first screenshots or trailer in the near future.