I don't think there's any way to truly and accurately predict which nation will or won't go back to being a monarchy. As a student of history and political science, I've always believed that any country that has the institution of monarchy as part of its national heritage should maintain that institution at all costs. Not to do so only invites political and social chaos and/or the establishment of dictatorships: Germany, Russia, Italy, Spain, Greece, the Balkans, etc. I think that in any of these countries, and in others, there is a real possibility that monarchy could be restored. But then the question becomes: should the monarchy be restored? In the 21st century, monarchy must reinvent and redefine itself. As much as many of us who are monarchists may pine for the days before WWI, when 9/10ths of the world's citizens were ruled by monarchs, we must also admit that it wasn't a very democratic world. I think most of us that are monarchists are also democrats...as in, we believe in the democratic process. The monarch must now represent not only a nation's history, but also the nation's democracy. Alexander of Serbia and Simeon of Bulgaria are two that I can think of off the top of my head who should be restored. They have proven democratic credentials. I think Serbia and Bulgaria would benefit from having their monarchies restored. In other countries, I'm not so sure. In Italy, the Savoys are done for. In Greece, I don't think there's any chance at all. But in those countries, and in countries like Germany and Austria, which are now quite comfortable as republics, there might be a sort of "crowned republic." An official recognition of the former dynasty; inviting the ranking representative of that dynasty to state events; using the pretender to the throne (call them Prince of Germany, Prince of Portugal, Archduke of Austria, etc.) for official overseas functions. In this way, the modern majority who are republicans are not offended by having an hereditary arrangement re-established and those who are monarchists are able to sate their desire to have their nation's royalty recognized. It's a half measure, but it's better than nothing. And perhaps, through this half measure, with deposed royal families proving themselves and their value and worth, they might pave the way towards their eventual restoration. Who would have thought that after decades of dictatorship in Spain, King Juan Carlos would have proven such a success? He earned respect over the years he spent in Spain under Franco working for the Spanish people...and then later, in defending Spain's democracy when faced with a coup attempt. And who would have thought that after the genocide of the communists under Pol Pot that a king would reign again in Cambodia? Anythig is possible...politics, afterall, is called the "art of the possible." The world is made up mostly of republics at the moment...but 20, 50, 100 years from now, maybe there will be a lot more people shouting "God Save the King...or Tsar...or Emperor...or Sultan..." We'll just have to wait and see.