You can counter file for fault if W does that first.
The courts would request mediation, this will add 6 months to the delay at minimum but not much cost. You won't have to pay a penny during that for that time plus. As I understand it W would have to file for interim relief which she is unlikely to get if you advise she is with OM1.
You could (not saying you will) cite all OMs in your petition and then they get registered court delivery. You are going to need proof if you go that route and it is a reality check. I have a friend who named 5 OWs and of course delivery would ensure that all 5 then knew about each other. Her H settled out of court in the end to avoid this. In friends case a 'courtesy' solicitor copy was sent prior to filing for real, for observations by the other party. I know games! Her H was in open awe as he didn't think she had it in her. That's a couple destined to reunite, W in that case is now a rotary superstar and H a retired has been.
Where is Starsky when you need a master at this stuff!
Vanilla
Freedom is just another word for nothing left to loose. V 64, WAW
