Charles, Philip, William may not go.
I can see Princesses Anne and Alexandra, and maybe even Princesses Beatrice and Eugenie going.
It’s the last big anniversary of D-Day and everybody knows it. They’ll all go as a sign of respect to the Anglo-American alliance. No matter how much they hate POTUS.
I can guarantee Meghan Markle will find a reason to be in Australia or Brazil during the trip. No way she stays in the UK...