Egyptian Baher Mohamed, Canadian Mohamed Fahmy and Australian Greste were found guilty in June 2014 of aiding a terrorist organisation, a reference to the Muslim Brotherhood, which was outlawed in Egypt after the army overthrew President Mohamed Morsi in 2013.
In January, an appeals court ordered a retrial, saying the initial verdict lacked evidence against the three journalists working for the Doha-based network's English channel.
Greste, who was deported in February, described the situtation as "frustrating as hell" and said that until there is a verdict, none of the accused could move on with their lives.
Fahmy and Mohamed were freed on bail in February after spending more than 400 days in detention.
Fahmy renounced his Egyptian nationality hoping he too would be deported like Greste.