You'd better hurry up Bear. In the meantime I think that they will be able to hold onto their particularly Caribbean culture, as well as any other island/society that size. Even the young people that I met that were willing to be frank with me, said they love their island and if they were able to get away from it now, they'd still want to eventually return and finish up the balance of their life in Cuba.
Some day Havana will be all prettied up, and while that will make the city quite lovely to behold, she is still quite something to see in her faded beauty.