Here are my predictions:
United Kingdom:
• The Duke and Duchess of Cambridge will undertake more public duties, I also think there will be two completely different tours for them next year.
• The Duke and Duchess of Sussex will get pregnant again. A second son will be born for them.
• Eugenie will announce her first pregnancy.
• Queen Elizabeth II will pass more patronages to Prince Charles and Prince William.
• Princess Beatrice will marry her boyfriend sometime mid-spring/late-summer and Prince George, Princess Charlotte and Prince Louis will serve as pageboys and flowergirl.
• We will see more of the Cambridge kiddos.
• Archie will celebrate his first birthday and we will get the cutest photos of him.
Sweden:
• Prince Carl Philip and Princess Sofia will announce their third and last pregnancy. Another son will be born in the second half of the year.
• Princess Madeleine will completely dissapear from Royal Duties. We will only see her for the celebrations of Victoria's birthday or Nobel Prize.
• Prince Oscar will start going to preschool.
• Nothing new for other members of the Royal Family.
Spain:
• Princess Leonor will make more public appearances with her parents.
Luxembourg:
• Grand Duke Henri and Grand Duchess Maria Teresa will host a pompastic gala dinner for their 20th anniversary of accession to the throne. Royal Families from around the world will attend it and will bring their most glittering gowns and tiaras along with them.
• Prince Felix and Princess Claire will announce their third pregnancy. Twins (still hoping for them haha) will be born in the end of the year. If not twins, then a little girl named Liliane will join the family.
• Either Princess Alexandra or Prince Sebastien will announce engagement following a wedding in 2021.
• All members of the Royal Family will attend National Day celebrations.
• Princess Marie-Gabrielle of Nassau will get pregnant with her second child. She will welcome a baby sister for her son Zeno.
• We will see Prince Louis with his new French girlfriend in a gossip magazine.
Monaco:
• Beatrice Borromeo will get pregnant with a daughter.
• Marie Ducruet will announce her first pregnancy.
• Charlotte Casiraghi will get a third son and will give him a strange name.
• All Monaco cuties will attend National Day celebrations, like every year
.
Belgium:
• We will get to see Princess Elisabeth with her first tiara.
• The King and Queen will make lots of state visits to other countries.
Hannover:
• Prince Christian and Princess Alessandra will welcome a son in the end of the year.
Habsbourg:
• Kathleen will finally get pregnant with a son. She and Imre will name him Karl.
That's it for now. If anything comes to my mind I will definitely share it.