From Bill Here and the Viva Las Vegas Newsletter in a follow up identifies the Casinos who have not yet settled with the Unions.

The only casinos, AT THIS TIME, that have NOT come to an agreement
are:
Barbary Coast, Binion's, Castaways, El Cortez, Fitzgeralds, Four
Queens, Four Seasons, Fremont, Golden Gate, Lady Luck, Las Vegas Club,
Main Street Station, Riviera, Sahara, Stardust and Stratosphere.