I don't think it necessarily means "sorry WW not interested" or that she becomes who she was. I think it's more a matter of determining is the person she has become and the person you are becoming going to be able to find a new path forward.
I know in my case my WW and myself have both changed a lot over the 22 years we have known each other. I don't want the person we had each become to be what we move forward with. We both have lots of work to do on ourselves, and until that happens, I know we can't possible consider finding a path forward together. And my WW has not ended her affair yet, so definitely not moving forward with that.
Just my two cents on this subject...
_____________________ Me:44 W:44 Together 22 Married 21 S 19 D 17, 15, 15. 7 EA/PA suspected 3/30/2016 EA/PA confirmed 4/5/2016 ILYBINILWY 4/5/2016 WW asked for Divorce 5/8/2016 (WW has backtracked)