Henri M. said:
What I missed in most of the above votes was the analysis of the situation. Some posters think that Spain's monarchy are in fact juancarlistas and others think that Norway will for sure become a republic.
But if there is a country which is the absolute number one for becoming a republic, it is -without any doubt- Belgium. Before a polemic starts, I want to make clear that this is my very own and very personal opinion.
A monarchy is a part of a state-structure. In most monarchies the core structure of the state and the constitution is hardly changing. This is not the case in Belgium.
Since 25 years, the once young, liberal and strong centralistic governed Belgian state is rapidly disintegrating into three regions which are more and more drifting apart: Flanders (the Dutch-speaking part), Wallonia (the French-speaking part) and Brussels (which is an enclave in Flanders but is in reality very Francophone).
The once centralistic system of one King, one Government, one Parliament has rapidly totally fragmentated into: one Belgian government, one Belgian parliament, three regional governments, three regional parliaments, the Dutch-speaking community Executive, the German-speaking community Executive and the German-speaking community Executive.
The once so strong centralistic state (à la France) has totally eroded in not so much more than a federal responsibility for Defense, Foreign Affairs and Finances. The problem is that with this fragmentation not only the importance of the centralistic Government is disappearing: it also counts for the King, who is the head of state of a disintegrating state.
The three regions have gained (and will gain in the coming new round of constitutional reforms) considerable powers. They already appoint their own regional ministers, governors and mayors. Their governments, parliaments and councils already work without any involvement of the King at all. They even do not pledge any oath of allegiance to the King. In buildings from the regional administrations you will not see a portrait of the King. More and more the King becomes an irrelevance, a ceremonial ornament of the Belgian state. But.... that very Belgian state is fading away... In 25 years he will become the 'King of Nothing'. Mark my words.
Note that also the King does not rule over a realm or is a King by his birthright ('by the grace of God'). The kingship of Belgium comes from the people. "King of the Belgians". When a King dies, his apparent successor is not automatically the new King. Government and parliament needs to declare the new successor "out of the name of the people" as their new King.
This is a complete different situation with the neighbouring Netherlands where the Queen has a central role in politics. She is head of state, she is an integral member of the Government, she is president of the Council of State (the highest advisory body and Court of Administration), she has the decisive role in the formation of a new government, she does appoint all the ministers, the governors, the mayors, all the senior officials of state, administration and armed forces, she has her own 'department' (the Queen's Cabinet) and manages her own businesses.
She is not declared Queen 'by the Netherlands People'. She automatically becomes so by her birthright ('by the grace of God'). The Investiture of a new Dutch Sovereign in fact is just a ceremony in which the States-General (=parliament) officially receive the King and brings homage to him. (Litteral text prescribed by Act: "In the name of the People and according to the Constitution and the Statute for the Kingdom, We receive You and We bring homage to You, as KING. We solemnly declare that We will always maintain Your inviolability and all the rights of Your kingship. We do solenmly declare that We will do all what a good, true and loyal States-General ought to do. So truly help Us God almighty!")
If there is one monarchy to collapse, it will undoubtedly be Belgium.