I doubt whether CP and Sof will leave Sweden for good as they are very much entrenched in Sweden and Sweden is their home.
I could however, see them spending the school year away and returning for summers on Oland. For better or worse, CP and Sof have a very limited royal future and Alex and Gabe have no royal future. I’d leave too, for the anonymity and a place to start over.
Plus, for what it’s worth, IMO, Sofia hasn’t looked all that pleased or even happy in her royal role for over a year. I honestly think she’s somewhat over being a royal.
I doubt they will move away, too. They just had Villa Solbacken refurbished and they have a bolthole in SA when they need it. This was just a way to get attention, unfortunately.
I think it may be wishful thinking to think she's tired of being a royal. She loves every split second of it, she lives for it. She's playing her martyred saint Sofia act is all, but it's so hard for her to act virtuous I think that's where the strain comes from if there is any.
Maybe as the boys get older (how I hope they are done having kids) they'll finally tire of it and go off to live permanently somewhere, but I'm afraid Sweden is stuck with them for now.