It is final for each individual case. IBM absolutely do not want anything made public, and will fight every case with a payoff, in order to silence the plaintiff and tie the court up with documents that cannot be released. Otherwise any public evidence would open the gates for all the other cases.
As ex-IBM I would have no qualms in telling them to stick their money and go for broke in court, with full disclosure. I wonder just how much the payoff is that no-one has yet done this.