I know you said you & W have gone through this sitch a couple times before. If I remember correctly there was never any formal MC or IC involved. I think that makes this time very different.
For the record this would be my H's 3rd chance.
Me: 30 EX-H: 37 DD: 5 Separated 6/07. MC for months, EX-H quit MC. Divorce Final 8/14/08. Trying to move on with new life.