This saga is just going to run on and on!
Much like it did with the Duke and Duchess of Windsor and King George VI; which only ended when the King died in 1952. When Elizabeth came to the throne the feud stayed under the surface. Charles may as well just get on with his life; unless all parties are on board with coming to some sort of closure?
If this has to run until either Harry or Wiliam has completed their time on earth, we and future generations could be in for 50 years of this. I don't think we will. All kids know today is the King and the grandchildren...Williams kids. Harry will just cease to matter. Publically obviously. He is very important to his nearest and dearest.
There has always been family feuds. Princess Mary refused to turn up to a whole raft of stuff because David wasn't invited. In this day and age that would be 24 hour coverage. They are no better or worse than anyone who has gone before. They just have a weaponised media.
The royals are obviously going down the route of the families of Charles, Edward and Anne. As the most recent photo, while also being sensitive by not having B and E's kids in it, is beginning to show. What are the chances that Harry will be again sat beside one of them at the coronation. While William, Anne, Edward and heir families are 'closer.'