I remember when this first offered the metal card and stated "we're issuing it to new cardholders" and they weren't really planning or perhaps "ready" to just start reissuing the current cards to the new metal. Thinking...well how I do get this done....called to say my old card got demagnetized and my new metal card was in my hands just 72 hours later. I was so excited! 
It'll be interesting to see what these look like.