You probably guessed it already.
Nintendo will be serving up tennis in a spot abandoned by space.
Mario Tennis: Ultra Smash has been dated for November 20, slotting into the slot originally slated for the delayed Star Fox Zero. The game's page on Nintendo.com also list the game's MSRP at US$49.99.
The game was previously dated for 20 November in Europe and 21 November in Australia as well.