From now until the end of the year AA has two upgrades available for upgrading on full Y fares.

DOMUPG5 (5000 miles one-way)and DOMUPG10 (10,000 miles roundtrip)- if you normally fly full Y, order a few of those now. Then upgrade as soon as you book your next reservation, then you don't have to wait for the 24/72/100 windows for upgrading. Great if you are just gold.