Reading the Amex coverage, it does address this issue https://www.americanexpress.com/content/dam/amex/us/credit-c...

“If the item is also covered by a purchased service contract, the Extended Warranty Period begins at the end of the purchased service contract and extends the original manufacturer’s warranty for a period of time equal to the warranty, up to two (2) additional years.”

So yes I think Amex extends the warranty after (prepaid 2 year) AppleCare expires for a term of one additional year, taking coverage to 36 months.

Amex coverage is now 2 additional years, but yes. It was one year for a long time.

I'm not so sure that's the case, when combined with an extended service contract. The "original warranty" was only one year, and this language seems to say that the length of the extended warranty offered by Amex after the service contract is equal to the length of the original warranty, not the length of the service contract. Although I admit, the language is ambiguous and you might luck out with the right Amex agent (when attempting to make a claim in months 36-48)

Thanks for the info