will it be in my interest to immediately get an AA and US credit card so the miles can be combined in a merger? Currently, I have neither but was thinking about getting a US credit card soetime in the near future, but I want to put spend on a few other CCs first.

If there is a merger (and if I don't hit the spend bonuses until after the merger) how will they MOST LIKELY treat my miles? I know this is pure speculation, but would like some guidance with how these things generally work historically.