On November 14, the U.S. State Department announced that it was “adding 26 subentities to the Cuba Restricted List, including 16 hotels owned by the Cuban military [intelligence and security services or personnel]. The Department is also updating the names of five already listed subentities to ensure they remain current. . . . Direct financial transactions [by U.S. nationals] with these entities and subentities are generally prohibited because they would disproportionately benefit those services or personnel at the expense of the Cuban people or private enterprise in Cuba.” 
The 26 new names range from the new five-star Iberostar Grand Packard and Paseo del Prado hotels in Old Havana to modest shopping centers in beachside resorts far from the capital. They join the list of 179 other Cuban entities on the Cuban Restricted List that the State Department first issued on November 8, 2017.
This change was predicted in a speech earlier this month by National Security Advisor John Bolton.
However, it must be remembered that U.S. travel to Cuba is still legal under 12 general licenses that are published by the U.S. Treasury Department’s Office of Foreign Assets Control. 
 U.S. State Dep’t, State Department Updates the Cuba Restricted List (Nov. 14, 2018); U.S. State Dep’t, List of Restricted Entities and Subentiies Associated with Cuba as of November 15, 2018 (Nov. 15, 2018); Assoc. Press, US Adds New Sanctions on Cuba Tourist Attractions, N.Y. Times (Nov. 14, 2018); Sánchez, History repeats itself: new US measures UU against Cuban entities, Granma (Nov. 15, 2018).
 See these posts to dwkcommentaries: New Restrictions on U.S. Travel to Cuba and Transactions with Certain Cuban Entities (Nov.8, 2017); Reactions to New U.S. Regulations About U.S. Travel to Cuba and Transactions with Cuban Entitties (Nov. 9, 2017); Additional Reactions to New U.S. Regulations Regarding Cuba (Nov. 11, 2017); Trump’s New Regulations Adversely Affect Cuban Entrepreneurs (Nov. 18, 2017).
 See U.S. National Security Advisor Announces New U.S. Hostility Towards Cuba, dwkcommentaries.com (Nov. 3, 2018).