As for now - Reigning Royal Houses of Europe:
UK
Both Princess Eugenie of York and Zara Philipps Tindall will have boys.
Pregnancy announcements for: Meghan, Duchess of Sussex (girl), Princess Beatrice of York (girl), Lady Gabriella Kingston (boy), Flora Vesterberg (girl).
Engagements for Edward, Baron Downpatrick and Zenouska Mowatt
Low-key birthdays for the Royal couple.
Finalizations of divorces of Philippses and Snowdons.
Relatives: Philippa Middleton Matthews has a girl.
Wedding for James Middleton & Alizee Thevenet.
Weddings for engaged Spencer sisters with their respective fiances.
Belgium:
Engagement for Prince Joachim & Victoria Ortiz.
Princess Josephine who reaches adulthood decides to meet her maternal family.
Norway:
Engagement for Marius Borg-Hoiby & Juliane Snekkestad
Princess Martha-Louise & Durek will separate.
Sweden:
Prince Carl-Philipp & Princess Sofia will have a girl
Fourth pregnancy for Princess Madeleine & Chris O'Neill, another son (this will be their last child)
Monaco:
Pregnancies for all Prince Albert II's nephews who are married:
Louis & Marie Ducruet - a boy
Princess Caroline's children & their respective spouses - all girls.
Engagement of Jazmin Grimaldi & Ian Mellencamp
Luxemburg:
Third pregnancy for Prince Felix & Princess Claire - a girl
Engagement of Prince Louis & Scarlett Sirgue
Engagement of Prince Carl-Johann of Nassau and Ivana Jamin
Wedding of Prince Constantin of Nassau & Kathryn Mechie
Liechtenstein:
Weddings of Princesses Maria-Annunziata & Emanuele Musini and Marie-Astrid & Rafe Worthington, and soon pregnancies revealed - for Maria-Annunziata - a girl, for Marie-Astrid - a boy.
Non-Reigning Royal Houses of Europe:
Austria:
Second child for Princess Gabriella & Prince Henri of Burbon-Parma (a boy)
Boys for Archduke Imre & Archduchess Kathleen and Archduke Christoph & Archduchess Adelaide
Engagement for Archduke Alexander
Greece:
Wedding of Princess Theodora & Matthew Kumar and soon pregnancy announcement - a boy
If Princess Nina is really pregnant - a girl for her & Prince Philippos
Russia:
Engagement of Grand Duke George & Rebecca Bettarini on George's 40th Birthday.
Serbia:
Second children for Prince Philip & Princess Danica (a girl) and for Prince Michael & Princess Ljubica (a boy)
First child for Prince George & Princess Fallon (a girl)
Engagement for Prince Alexander
Bavaria:
Prince Konstantin & Princess Deniz will have a boy.
Non-European Royals:
Jordan:
Engagment and wedding of Princess Iman bint Hussein
A baby for Princess Rayiah bint Hussein & Fares Ned Donovan (a girl) [both their brothers are done]
Wedding of Prince Nayef bint Asem & Sharifa Farah Alluhaymaq
Morocco:
Second child of Moulay Rashid & Oum Khaltoum (a girl)
Engagement of Moulay Idris Filali
Bhutan:
A baby for Princess Euphelma Choden & Dasho Thinlay Norbu (a girl)
Japan:
Wedding of Princess Kako & Kei Komuro
Engagement of Princess Tsuguko
Brazil:
Engagement for Princess Maria Eleonora of Orleans and Braganza
Engagement for Princess Luiza of Orleans and Braganza
Wedding of Princess Maria Cristina of Orleans and Braganza & Gustavo de Arazane
Wedding of Prince Pedro Alberto of Orleans and Braganza & Alessandra Haegler Fragoso Pires
Second child together (her fourth) for Maria Francisca de Orleans e Bragança & Michael Anthony Whyte (a boy)
First child for Princess Maria de Fátima of Orleans and Braganza & João Fontes Soares (a girl)