I don't see this game cracking 1 million for the Vita, unless it gets bundled.
The PS3 game might crack 2 million if the DLC is good, and if it gets a price drop to ~$40. I doubt people will buy this game at a full $60. They should also continue to market this game, and sponsor tournaments across the world. A PS3 bundle also wouldn't hurt. Right now this looks like another slow burner unless Sony can turn things around.