To the extreme left Cuba should have a dictatorship of the proletariat but the Castro are encouraging a new breed or class of rich and creating another dictatorship over the proletariat. Most governments in Europe and the Americas that Cuba would evolve gradually and peacefully towards a multi-party democracy with free enterprise.
However, there are those who propose such a violent change in Eastern Europe to create a laissez-faire capitalism (as they want many of the Cuban exiles in Miami) or an anti-bureaucratic revolution that would prevent the return of capitalism and return to the path of Lenin Che (as postulate some Marxists). The Communist Party, however, rejects all this as it ensures that if your model is broken the post-Castro Cuba could follow the path of post-Tito Yugoslavia and into a terrible civil war. Havana prefer to follow the path of China and Vietnam to maintain control of the Communist Party but make concessions to the market and perhaps a certain ideological pluralism. The work despite the United Kingdom suggests that Cuba becomes a democracy, the monarchy does not choose its Head of State or his Upper House.
Fidel Castro (the leader of Cuba since 1959) and Elizabeth II (British queen since 1952) were the most heads of state in office lasted throughout the West. While the former justifies his position for having led a popular revolution, the second does it for the rights of his family. While some sectors Labour that Britain wanted to have a head of state and an elected Senate, his party (after almost 11 years in power) was restricted to want to give it a more modern monarchy while his reform of the House of the 738 Lords overturning the fact remains that his power is the only one where all members of the Upper House have been appointed rather than elected.