The NYC Municipal Archives has had the marriage records through 1937 for years-this is not something new. They also have had the index to marriage records through 1949 since about 2001.
The "only" things new are: 1. The New York City Clerk's Office will no longer provide the copies of the marriage records 1930-1949; and 2. The New York City Municipal Archives will have the records on microfilm for years 1938-1949.
Jan Meisels Allen Chairperson, IAJGS Public Records Access Monitoring Committee