A new Grand Prix mode has been announced with the game's appearance on Tokyo Game Show. Fans can look forward to 3 vs. 3 team battles. There is also a new rule called ”Crystal" and new characters with unique skill sets. Characters are from Rumble Roses (Reiko Hinomoto) and Zone of the Enders (Anubis, Jehuty).
http://nintendoeverything.com/super-bomberman-r-reveals-new-grand-prix-mode-new-characters/