However other news sites are reporting, such as the one below, that Prince Charles, Prince William and Princess Anne
may take the royal salute instead of The Queen. Also that The Queen
may travel from Buckingham Palace in a carriage to inspect the troops and will then retire, leaving Charles, William and Anne on horseback at the parade.
https://www.mirror.co.uk/news/uk-news/plans-drawn-up-senior-royals-27033365