Dragonball Online is now in open beta, and if you're willing to fiddle a bit with your PC gaming rig (or you're fluent in Mandarin), you can check out the game's Taiwanese client.
Fansite Dbocom is providing an English translation patch for the game's UI (though you'll still be at the mercy of your Mandarin skills when it comes to NPC names, quest descriptions, and the like).
Dragonball Online, which is being developed by NetMarble, takes place 216 years after the conclusion of the Dragonball manga series. Player characters are responsible for repairing various "cracks in time" while playing through a game under the creative control of original Dragonball artist Akira Toriyama.
[Thanks to Scott for the tip!]