I have J award tickets issued by AA to fly in late Feb. to PNH on CX and return from BKK on JL. I was told by AA that if the alliance changed my JL segment is still good, If JL went bankrupt then AA would get me home on another airline, probably CX. My tickets are in J and AA said we'd still be in J. Of course they can say anything. Since we'd be coming home, if there were no J seats availalble we'd have to take coach since we'd need to get home and be at AA's mercy.