I posted this one the GamrReview site I will put it here also.
They may be experimenting with the series, and they are going to make the game and offer Roster/Stage Updates as DLC (Something that EA should do with Madden). So you release the game near the beginning of the console cycle and keep updating it every year. Think something like NSMBU and SLBU, you need the base game but get a new game at a cheaper price because it is built on top of the original game.







