Cuba libre

For 450 years Cuba suffered cruelly from colonial domination, bound by the chains of underdevelopment, imperialism and poverty. In 1959 a revolution led by Fidel Castro and Che Guevara overthrew the old regime. Since then Cubans have achieved sweeping social and economic reforms. They have kept the USA at bay and avoided control from the now defunct USSR. They have supported socialist revolutions and reforms in Latin America, Africa and elsewhere. What will happen after Castro?