This is very encouraging. The fact that your wife is having these discussions with you is fantastic. I can't get my wife within 100 miles of an R talk.
The fact that your wife is mentioning the kids and the impact on them is huge. It means that she is starting to think about other peoples needs and not just her own. This is the one area where I see hope with my situation, my wife is very concerned about the kids. I use this to my advantage by being the best Dad that I can. Sounds like you are doing the same.
You are in a good place. Give her lots of time to bring up the next R talk. In the meantime, keep taking away all of those reasons that she has for wanting to leave.