Russia should go further than ceremonial, and get a functional monarchy. I am not sure how the Russian people would feel on it, however (though I seem to recall a particular saint or elder predicting this would eventually happen).
Elder Nikolai (Gurianov) apparently mentioned it at least twice.
"- In September 1997, a group of 10 piligrims visited Nikolai in his wooden hut. He came out to bless people and anoint them with holy oil. One woman asked: "Father Nikolai, who will be after Yeltsin?" He replied: "Afterwards there will be the military one...His power will be short. But his age is little as he is himself. There will be persecutions, upon the monks and the church. His power will be as it was during the communists...". She asked again: "And what will be after? After will there be an Orthodox Tsar. Will we live to see that?" "You, yes." After those words he blessed the woman.
- In June 2002, a group of Orthodox priests and laity visited Nikolai for his blessing. He was asked: "Will we see an Orthodox Tsar?" Nikolai having traced the sign of the cross, prayed and firmly said "A Tsar is coming!""http://www.johnsanidopoulos.com/2009/04/elder-nikolai-gurianov.html
I also recently saw at least one prophecy from a saint from centuries ago that mentions a royal. According to this prophecy, before the 21st century is out, there will be a great war in which Europe is led to victory by this royal and the Roman Catholic and Orthodox Churches become one--the prophecy apparently reads as if the RCs convert to Orthodoxy. I haven't managed to see the original prophecy, but it sure is interesting.
The Hapsburgs and Romanovs died out.
Please inform Archduke Otto that he has died.http://en.wikipedia.org/wiki/Otto_von_Habsburg
Besides Christ the King, no one. But St. Vladimir didn't say no one was worthy, he claimed being a monarchist made one worthy and not being a monarchist disqualified, imposing a condition that Christ nor His Church recognized nor required.
He said that not being a monarchist was an indication of poor faith. That a monarch is from God but a republic is from the people. That a monarch keeps his office by following God, a president by pleasing the people.
For Russia, I would like to see a system divided between 3 primary "rulers", that of the President, the Prime Minister, and the Czar. Each would have unique powers and abilities, as well as unique influences. The people would elect the President, the Prime Minister would be appointed by the Federal Assembly, and of course, the Czar/Czaritsa would inherit the throne.
The President & Prime Minister wouldn't have much restrictions, but the Czar/Czaritsa would have to be an Orthodox Christian in good standing with the Church.
As a constitutional arrangement this doesn't make much sense. Having a monarch of any sort would render a President irrelevant.