An updated version of the Mario Tennis: Ultra Smash box art has been spotted on different retailer pages for the game. The new box art features new character art and poses, but nothing outside the unsurprising confirmation of Luigi was revealed. You can check out the box art below!
It also looks like the image that was released yesterday featuring characters in the stand is actually from the box art. Mario Tennis: Ultra Smash is set to release on November 20 in North America and Europe.