Hi, I have 5 systemwide upgrades that will be expiring at the end of February. Unfortunately, I don't have any trips planned on AA before then, but I do have one in April. Does anyone know if AA allows members to extend the expiration date? Are there other benefits that I can trade these in for? Or is there a way to trade the upgrades between members (I am willing to trade all 5 that expire in Feb 29, 2016 for 4 that would still be active for April 2016 travel)? Thanks!