I'm thinking that the easiest way to get the new look card is to say you lost your SPG card. You'll be without a card for a few days and have to reset all your pre-approved payments, but you'll have the shiny new card!
On another note, I still haven't received my Bonvoy points from my May 18th statement. I called in to Amex and they said that there is something wrong with the interface with Marriott. Is anyone else having this problem?