No information provided besides the screenshot. so it is now safe to assume that we will have more than one alt per character.
EDIT: Thanx to blog reader " FistfulOAwesome " we now know that this is not a second Alt costume. In fact this is her first alt costume after the gi falls off. According to the same reader, Sakura's gi falls during the fight, but we do not know what moves has this effect on her costume. Still Pretty cool though.
Special Thanx to FistfulOAwesome