The new pier at GIG Terminal 2 opened this week with AA being one of the airlines utilizing it. First arrivals were Monday and departures yesterday.
https://www.rio2016.com/en/news/rio-...-olympic-games
A poster on another forum said the new AC would open at the same time though I haven't found confirmation of that and AA.com still shows the 'temporary' lounge. Any word on whether the new club is now operational at GIG?