Could someone kindly update us a list of royal ladies who are expected to attend please?

I am very curious as to CP Marie Chantal will attend, and if so, if she will wear for the first time the rubi or emerald parures.
She also has, of course, the stunning diamond tiara from Queen Sophia she has worn for the past years at major gala events.

Marie Chantal is now the wife of the Head of the House so I am assuming Queen Anne Marie has passed on to her the two major parures.
For gala ocasions Queen Anne Marie now wores mainly her own inherited jewels, the Khedive tiara and the necklace from Queen Alexandrine diamond sautoir, and some other smaller brooches.