Square Enix just announced that a free login weekend will be held on Final Fantasy XIV: A Realm Reborn, allowing former subscribers to experience the new features and content added to Eorzea with patch 2.1.
From Saturday, January 11th at 12:00 AM PST to Monday, January 13th at the same hour, former subscribers of Final Fantasy XIV will be able to log into the game for free. The offer is open only to those that previously registered an account for the game, which must obviously be currently inactive to be eligible.
If you don’t have the client, you can download it here. Personally, considering how much fun I’m having with the content of patch 2.1, I’d definitely advise giving it a try.