yeah it was announced that the vita version gets the 12 additional characters plus the swap outifts for the original fighters, also if you preorder at amazon you the get the swap outfits for the new 12 fighters for free.
The unnecessary Capcom hate is getting out of hand. Seriously, they are probably one of the most user friendly and fan hearing companies out of many. But when they do a little problem, everyone hates them (but seriously, bring back MML3).
Next time when stuff really become DLC, don't go crying that it's not on the disc so you can't play with others with the DLC.