Now that American Airlines knows they are going revenue based on August 1st they probably thought it wise to extend their premium cabin bonus offer. This offer was around in 2015, then got extended to June 30th of this year and now it has been extended further to the end of this month most likely to appease members and give them the chance to rack up more miles now since many of them will earn less starting in August.
OFFER EXTENDED Earn up to 12,000 Bonus AAdvantage Miles when you
purchase and fly on a First or Business Class ticket on American
Airline or eligible partner flights marketed by American. Full Details Until Jul 31, 16