Originally Posted by
CPRich
Since this is the US forum, most of your reasoning seems to think you should be looking forward to it. I'm a long-time US CP/2MM, left out in the cold with the PIT pullout, who has now moved to PLT with AA. If this means I can combine my lifetime miles to AA lifetime PLT, and get bother carriers out of PIT (would have the pkurality of flights, though far from majority/dominant), I think it would be the best outcome for me.
Not sure the bolded part is gonna happen even if US and AA combine. IIRC, when AA acquired TWA, the TWA account balances (unspent miles) were converted to AA miles and added to the AA lifetime counter. But I don't think that previously redeemed TWA miles were added to AA's lifetime counter.
To add yet another wrinkle, AA changed its lifetime Gold/Plat counters last year so that only Butt in Seat miles count toward lifetime status.