Hi jstrembr, I thought you had said you were ready for D ? If you’re ready, then just hire a lawyer.
Now if you’re not 100% sure and you still aim at R, don’t do anything, you could regret it later. Just wait for her to contact you.
I know it’s hard and personally I could not stand being in limbo like this for several months knowing that W is probably with another man.
But everyone is different and if you think there is still a chance that you might R, then don’t reach out to her and be patient.

As to the question why WAW jut wait like this for months without taking any step towards D, my XW acted the same and I never really understood why. Maybe the vets can give explanations.