Kokoro and Helena didn't do a dam thing during that mess that served any real purpose.
TNs stories suck the most interesting thing we are going to get is her back story
They might get a more story focus aspect in the next game, where we might see some powerplay politics. It has been an evolutionary thing for all the fighters that the story become deeper as time goes by. Don't forget that Hitomi fought Lei Fang for a cabbage in the last game, it has evolved a little past that. Then again that was pretty funny, so I don't know.