You're not only getting one new Star Fox game, you're getting two!
http://www.nintendoworldreport.com/news/42067/more-star-fox-zero-information-released-star-fox-guard-announced
More information on Star Fox Zero, including information on another new Starfox game, was announced on today's Nintendo Direct.
Teleporters appear in the game that have a big impact on the branching map. Fortune that features brand new enemies. Corneria was also shown, showcasing the alternate paths some stages have. Once you beat Venom in normal mode, more branches and paths open up in other stages.
There is also a two player mode. One person can pilot the arwing with a controller, and the other player with the GamePad can shoot.
Amiibo integration is also included. The Fox Smash Bros. amiibo unlocks a SNES-style arwing from the original Star Fox game.
Star Fox Guard was also announced, the new name for Project Guard, which was shown off at E3 several years ago. This premise involves Slippy's uncle Grippy. Slippy has a new security system that can ward off enemies. There are over 100 missions to play and can also play other peoples creations or upload your own levels to play. This game will be packaged with Star Fox Zero physically, and can also be downloaded separately on the Nintendo eShop.
Both Star Fox Zero and Star Fox Guard will be available on April 22.