Switch buy for sure. Looks like they are hinting to dual variations of each character. Meaning, that you'll have a classic variation of a character (think MK1 or 2) and the more recent variations with all the additional moves and weapons, etc.
Could be awesome.
I read it as a custom variation. I'm guessing each character will have point limit for example, lets say 1000 points, and each special move will have certain cost. The player picks what moves they want and that's balanced by the cost of each move in comparison to the overall point limit.