New Main Select fares: refundable, includes main cabin extra
Main Select fares will be fully refundable and offer several benefits typically reserved for AAdvantage Elite members. Most notably, Main Select passengers can select any seat in the coach cabin, including Main Cabin Extra, with the additional legroom. Also included are priority check-in, security, and boarding.
I saw this on boarding area: https://paxex.aero/american-main-sel...economy-class/