Unless there is a behind the scenes understanding between AR and the commercial airs, pretty soon they are going to have to start canceling first half September flights. The commercial airs usually need about 6 weeks lead time to schedule international routes. This is made easier because right now, there is spare capacity of everything - planes, crew, fuel, takeoff and landing slots. But they still will need more than a month advance notice. Unless there is an agreement unknown to the general public, early September will start getting cancelled soon.
I have been buying cheap fares that I know are likely to be cancelled. When they are cancelled, I call the airline. I tell them I am entitled to a refund and they agree. Then I say, "Look, the airline needs the money and I like the price of this ticket. Why don't you give me a trip credit with no difference in fare and flexible date?" In other words, the airline keeps my money and when the flight schedule returns to normal, the airline flies me for that discounted price on a day of my choosing. It has worked every time. I have a few different trips from EZE to various points in the US in the hopper - all for under $600.