I think people are hesitating (I am) because we can't recall if there is ANY duty free available now that AC has moved to terminal A. I am trying to reconstruct my steps from entry to the terminal to the gate and I can't really see where Duty Free might be. It is possible that you could get stuff carried over from the terminal B.
I think it is safe to say that IF there is duty free in Terminal A, the selection is unlikely to be extensive