Thought there might be some interest on the guidance supplied by the Treasury Department in response to the stealth Cuba provisions in the omnibus bill.  As Henry indicated, the travel for family members is relaxed from immediate family to close family-

b) For the purpose of this general license, the term close relative used with respect to any person means any individual related to that person by blood, marriage, or adoption who is no more than three generations removed from that person or from a common ancestor with that person.

For the more commercial aspects, you can read the document here.