Makes more sense for AC to be in Terminal 3 as most connections would be via UA domestic, than *A international.

The shops are nice in the international terminal, but I've never been under a desperate need to buy a Gucci handbag just before I board a flight.

If they put an MLL in terminal 3, I wonder if they'll restrict it to Altitude and MLL members. Otherwise it would get overrun with United Club members.