Capcom has just informed GPU that Mega Man 9 will be getting some DLC this week. Both of the DLC packs below are available on WiiWare now, XBLA on October 7th and PSN October 9th.
"Endless Attack – Test your skills on a stage without end. Try to break the record for getting the farthest. Results will be displayed in the Rankings page. Not compatible with other Challenges.
Proto Man Mode - Play the game as Proto Man. Some of Proto Man's abilities may differ from Mega Man's. Proto Man has the Charge Shot ability, Power Slide ability, and a shield that he can utilize to deflect bullets at enemies. However, Proto Man also takes double damage and has double bounce back when he is hit.
There is no story for Proto Man and he is not compatible with Rankings or Challenges."
So get ready for some more Mega Man 9!