That assumes the point of invading Cuba is to do liberal market reforms. If the goal is either to expropriate resources or just throw chum to the Florida voters in an election year then it's still on the table.
In the case of Cuba I imagine it's simply just political control, vassalage, control of the hemisphere. In the case of Venezuela it is Energy Dominance. The USA wants to control Global Energy supplies: oil and [natural] gas. It's all about China. By controlling the world's energy supplies the USA hopes to curtail the rise of China as a peer competitor and prevent other nations from achieving that status as well. Oil is price in $US. Iran was selling their oil in Yuan. That's a big no no from the point of view of maintaining US Hegemony.
