I barely got through half of the first book but I know I'm not really in Rachel's target demographic. And the only reason I picked it up was because I was staying in an AirBnb and the reading material was light.
What I think will happen is that they will do D&R v 2.0 where they become coaches for those thinking about divorce and how to navigate it as a perfect couple remaining besties. That's when she will release books called "Girl, Wash Your New Sexy Underwear" with a chapter inside titled "Revenge Bod," "Rules for Getting What You Want From Your Ex," and the always interesting "Sex With Your Ex: Should You Just Do It?"
They aren't going to get off the public teat anytime soon, I promise. Stay tuned for the next chapter.