Your AA status should get you benefits on US starting January 7th but AA has no agreements with other *A carriers at this time. The only way you would be able to do that if AA and US start doing status matches instead of just recognizing their FFs. If that were the case, you'd be matched to Gold Preferred on US and until they exit *A, you may receive *Gold benefits on any *A carrier you fly. This is basically what Southwest and AirTran are doing with their elites to recognize the status on both airlines but they are not members of an alliance. I don't think US and AA will go down that road but it's my understanding that they will announce on January 7th the first benefits of the merger. You may have to wait until then to find out.