Compbros
Man of Tomorrow
The variations we see now could change before the game comes out, we have a year till it's out and we can play.
But, even if it's "it adds this move instead of that one" or "adds armor to certain moves instead of increases damage" it's still a change. The specifics don't matter because Cassie's variations aren't the same as Sub-Zero's. They change specific things per character so, again, why is it too early to decide if winner has to keep variation?