I am the WS, I hope it's okay to respond to your post.
So, by what I can tell you guys are like really, really early out. Confirm when you DDday was, but I see you posted in JFO Forum a few days back.
Honestly, these are such early and turbulent days. I don't think you will know for some time if R is for you or not. You will spend the next several months in shock. She will need to be committed to the process of discovering her "how and why she could do this". It's way too early for marital counseling because it wasn't the marriage that was broken that caused this to happen. It was your wife that has the issue and is broken.
So, it's my suggestion she attends individual counseling to start with. You can't reconcile with someone who hasn't learned why she has done what she has done, what she needs to do to change those things within herself, and become a safe and remorseful partner to anyone.
As for whether you are willing to wait and see how things go or not, that is completely your prerogative, but putting money out for a program like this, I would say it's too early. She needs to heal and fix herself. You need more time to heal, then together you can heal the marriage. And, this is a long process.
I would say the way it looked for us was:
Months 1-6 - H was in shock and started showing signs of grieving. I was swimming in shame and while I felt all sorts of regrets, I didn't have the perspective at all as to what I did to him...the magnitude of it.
Months 6-9 He was in an anger phase, I was dedicated in IC from before I confessed still through this point. But, I was just getting a handle on what I did to him and why I did the things I did.
9.5 months out he asked for a divorce, we started in house separation.
Somewhere in month 10 he decided he wanted to R, like really landed on it. I think my actions and change were really starting to show and he had gone down the path of planning the divorce and decided he had his ducks in a row as a "safety net" of sorts. We started marriage counseling at that time, I stayed in IC.
Months 12-18 - we made a lot of effort to reestablish our connection, I continued working on myself and was making the most progress of all the time combined. He started to soften. We were able to spend time away from discussing the affair for small stretches. He was still up and down - sometimes distant, sometimes close. Somewhere in there we did go to a workshop that did help us in reconnecting, it was a Science of Love by Dr. Gottman.
Months 18 - Present (we are about 27 months out from DDAY and 29 months out from the affair) We have been really visioning what we want our marriage to be, we have been rebuilding a lot of things and some of it is completely new. We reference the A some, but probably only have a meaningful discussion about it once a month to six weeks. We are present. In many ways our marriage is significantly deeper and open. I wish our marriage had been this way all along, I will never love the path I took in having an affair. I wish I would have gotten help without having that event occur. But, I do think we are both very happy that we chose to R and feel a very strong connection again.
But, if you had asked him during the first year, it depended on the day and usually it depended on the hour. That being said I think that some people know straight off that D is the right path for them, and that should be a consideration. But, I also think that sometimes it looks more like "I will stay because of this (insert reason) now, and that reason just evolves. For some, it still ends in divorce, but for others it ends in something better and finding peace again.
Right now, your wife is not a safe person, she has a lot of stuff to fix. She is not nearly to the point she could have learned her lessons or what she needs to know or change. So, if you think R might be a possibility, watch and wait. Healing is possible, I would recommend reading about Detachment (there is a good article about doing a 180 in the healing library) because you need to work on healing no matter what the outcome is and no matter what the WS is doing. Just my two cents. Take care, focus on self care, focus on what you need, and don't put any pressure on yourself to do anything.