It has been rumored that Shadow Mode will be coming to Marvel Vs Capcom 3 last week. Capcom has confirmed that the DLC will be available for the game in a series of dowloadable packs that allow you to square off against fighting game legends.
In March, the first of the custom built DLC packs will arrive. Each pack will contain three unique teams to battle against with their own programmed special techniques and preferences.
The first pack will include the team and tendencies of Ryota Niitsuma, Akihito Kadowaki, and a MvC3 tester as previously confirmed. More packs as are scheduled and Capcom says ” some personalities you may already know” .