I just get the sense that she's written what she has to write in this 'verse, at least until she herself is in a new period of her own life and that suggests new points of view to her writing.

Yes. She's seemed to be preoccupied lately with time passing and aging and children growing up, which makes sense, of course. Has left me really hoping we'll get more aging Miles dealing with the increasing vicicitudes of his body, etc.