Is there any talk about the NAB premium/platinum Amex being allowed entry into the Sydney American Express airport lounge?

Is there any talk about the NAB premium/platinum Amex being allowed entry into the Sydney American Express airport lounge? It is the only big 4 that doesn't have a card that allows entry

My ANZ Amex platinum black card allows entry twice a year to the Amex lounge, plus 2 Qantas club passes annually.

Not really what the OP asked...

Many of the cards that allow access to the AMEX lounge are "above platinum", with some exceptions of course (like velocity and djs). Does NAB have a comparable product?

Sorry, I read it as "is it only the big 4"