The UNIAN news agency quoted Andriy Fedur, a lawyer for Gongadze's mother Lesya, as saying the hearings will start on 19 December at Kyiv's Appeals Court.
Ukraine's ForUm information website says the Appeals Court is to determine who among the Supreme Court judges is to conduct the trial.
Three defendants face charges over Gongadze's murder.
Critics blame former President Leonid Kuchma for allegedly orchestrating the killing of Gongadze. whose beheaded body was discovered in a forest near Kiyv. Kuchma has rejected the accusations.
(UNIAN/ForUm)