listening to her mother is not healthy, I am sorry but she can't possibly know if her daughter loves you. Your wife has proven herself to be incredibly clever when it comes to her self preservation, she knows what to say to keep everyone on side.She has experienced the backlash before of stepping out of line with her families beliefs and she is smart e not to do it again.
Mother in Law telling you what you want to hear is not supportive, your wife knows she will pass on the message and DiD you even hear what you just wrote?
She doesn't want her family to know incase you get back together.
Translation: just keep him on the back burner in case I fk this up too.Also she knows her family will pressure her into going back to you, you said yourself they are heavily religious,she probably just doesn't want the earache.

And If she did come back to you, she'll probably be resentful and embittered because things didn't turn out how she wanted.
You want to be her last option?
I dunno I guess if your happy so long as she is with you, wether she truly wants to be or not at least you'll be happy.
Have you always been so single minded almost blinkered in your views?

What I mean is, your wife is reaching out for support from these other people because they support her TRUE intentions.
Why do you think she doesn't turn to her family?
She knows what they will say, they will want her to work on her marriage. That isn't what she,wants and she obviously does NOT want people around her giving her that advice.

She has surrounded herself with people who she feels will support her decision to break free and move on.
Wishing for it to be something else is futile.

The more you tell us about your wife and this situation, the more intelligent she appears and the more well planned this seems to have been.

Whilst I was always aware she had orchestrated this carefully, I had underestimated the depth and complexities of hurdles she was going to encounter. She has done an excellent job of keeping everything absolutely in her control and moving at her pace.

I am sorry you find yourself no further forward, continue to go to counselling, keep doing things for yourself, I still think you need to extricate yourself from her mother a bit more. Is there not a pastor or someone you could go too?
Please take care of yourself.