I received a letter from Citi this week that they're going to convert my AA Visa card to MC. They state I'll get the new card in 4-6 weeks.
Of course, they told me the same thing over a year ago. We'll see if they mean it this time.
...OTOH, No, I probably won't see if they mean it. I'll cancel this card as soon as points from the current cycle post as I don't want a new AA MC account number to reset my 24-month clock on eligibility for the signup bonus!