Thanks for the list. There have been a few missed opportunities for brooch wearing such as the photo with the King and Queen of Belgium at Windsor castle which was disappointing. But the first day of Ascot was a great start, it's raised my hopes for the other days!
In addition to your list I'd like to see Camilla wear the Godman necklace, the cockade brooch, the wheatear brooches, George IV diadem, Queen Alexandra's Kokoshnik tiara and resille collier necklace.
I'd like to see Catherine wear the Girls of Great Britain tiara, the Sheikh Rashid of Dubai Sapphire necklace, Diana's sapphire choker necklace and the Marie Feodorovna / sunburst sapphire tiara.