I'd recommend that he hold this card as an ace-in-the-hole, against a VERY aggressive settlement offer. "Aggressive" defined as something that's very good for LIS. If she balks, play the card.
Have you and your atty discussed some sort of a "sweetheart deal" to put in front of your wife? Waywards in the state that your wife is currently in will sometimes do ANYTHING to get out of the marriage. Maybe you can use that to your advantage.