Good to hear from you, jb. Yes, at first blush it sounds like there should be a move to piecing, yet I don't think your W said she wanted to R. She simply said she wanted to review and see if that might be something to consider. There's a huge difference, there.
I know want you WANT. Yet I know you have done an awesome job living your own life and had been prepared to carry on with what WAS the status quo.
Take things really, really slow, my friend. Continue to be the new, best you. I have no doubt that you could eventually step into piecing as a better man and sharing partner.
You will need to take time to allow her to continue to step towards you, until such a time that she wants to actively work on R. Otherwise, this is just a false start which will simply delay the D direction the two of you were on, up until now.
Wishing you the best in this, and a very, Merry Christmas to you and yours.