It appears that the secondary insurance offered with the Platinum card will start offering coverage in Ireland, Israel, and Jamaica beginning September 1, 2017. I just reviewed the Premium Car T&Cs and unlike the secondary insurance, there is no indication that this coverage has been extended to those three countries--with the secondary insurance there are now two sets of T&Cs on the website, one good currently, one beginning September 1, 2017.
Anybody with insight on whether AMEX intends to extend the Premium Car Rental Protection to other countries? I travel fairly frequently to Ireland and wouldn't mind using this coverage there to save some money on rentals, especially as I've had uniformly excellent experiences with Premium service.