DragonBall Heroes: Ultimate Mission is a port to the original card based DragonBall: Heroes arcade game in Japan. According to V-Jump, it is set to release on the Nintendo 3DS winter 2013 and will include over 200 characters (via over 800 cards), with plenty of new characters that were seen in the original DB Heroes.

dbheroes 3ds vjump 665x1024 DragonBall Heroes Coming to Nintendo 3DS

Source: http://www.kanzenshuu.com/