According to Nitsuma, the Producer and Director of Marvel vs Capcom3, it has been confirmed that Dr. Strange, Demitri and Cyclops won't be playable characters in the game.

That sucks about Cyclops...

 The name is different, since it was before Scourge’s transformation and his name change.

  There goes spamming optic blast in a multitude of ways. There were other character’s cheap shots were far worst. He was great character for fighting games.

I would like to hear what Dr. Strange would say during a special.