 Activision has officially announced that there will be 8 additional  characters that can be downloaded onto the Xbox 360 via the Xbox  Live Marketplace. The heroes and villains are Cyclops, Nightcrawler,  Magneto, Sabretooth, Venom, Doctor Doom, Hawkeye and Hulk. The  update was originally due on April 10, 2007 and while no current  date is known, it has not been said whether any other platforms will  have access to these characters.