I still think their current wish is that. They have rebranded back to their Sussex royal blue, have given their children titles and now change their surnames, Harry has said he would be interested in a role supporting the Commonwealth, they still using their monograms and cyphers (even having it on their doormat), and supposedly asked to be addressed as sir and ma’am at the recent Invictus Games events.
Their problem has never been about being royal but about not being able to control the press, their family not allowing them to control the narrative and their conspiracy theories that their family were behind the rumours.
If Charles offered a grovelling apology and a job back tomorrow I honestly think they’d be rushing back to their role. Other than the book Harry hasn’t done anything since leaving that he couldn’t and wouldn’t have done inside the family, there was no part holding him back except the lack of press control that he wanted.