Dondon, of course there is a chance, whatever the percentage, if you want something bad enough to fight for it, there is a chance you will get it.
In court, which I think is the right thing for you to do, if he wants to leave the M, there is a process to go through, if he doesnt like it, he shouldnt have started seeing another W. Look great, fix your hair, wear water proof mascara, if you want to, wear your rings.
Have dignity. Most of all, keep your dignity. You can cry later, right now you have to maintain.
Be honest about your hope of reconciliation, dont hold back anything that is the truth, about his affair, or otherwise.
I wish that none of us had to go through this, but like you said before, whether this is just part of the trip back to M, or to moving on, you have to do it.
By the way, it may not be much comfort right now, but I read a quote on here once that said that the best revenge for a woman who is willing to have an affair with a married man is to let her have him! What kind of a woman is ok with seeing a M man? This isnt a good person, certainly not as good as you are. No matter how easy he thinks this will be, divorce is hard, emotionally, physically, its really tough, and I really dont think their R is going to have the foundation it needs to handle that.
I guess I gave the wrong finger to the wrong man...