Originally Posted by
ekwang
My guess is that it'll be like UA and CO before the merger completed. Chase ran both their card programs and Citi runs them for both AA and US, and post merger you will have one combined acct with mileage from both accts integrated into a "new" AA FF acct (not a new acct being generated but new in that it is an integrated of both pre-merger accts). I say go for broke and churn both the World Elite MC for US Air and maybe the Top Tier card for AA for the miles and bank them.
And if I remember right NW had US Bank and Delta Amex, it seems that the NW card stayed around a while then US Bank converted members to Flex Perks. I would expect the Barclays to eventually lose the airline.