After a months long drought, I found two new Metrocards in the last two days. Both Metrocards were on the ground near Metrocard readers so I don’t know if/where they are for sale. The Grand Central Metrocard seems to have been announced months ago so I’m no sure if it is even still for sale. The Resorts World Casino Metrocard seems to be brand new.
Grand Central Grand Centennial Mercury Sculpture:
Resorts World Casino New York: