JOHANNESBURG - Middelburg farmer Reinhardt Steyn and his co-accused are also back in court.
They face charges of kidnapping and assault.
Murder charges are expected to be added after the bodies of their victims were found.
WATCH: Middelburg farmer, security guard bail application postponed
The remains were discovered last week after police got a tip-off.
The victims, Thembeni Mnguni and Wanda Mahlangu, were reported missing last month.
They were allegedly abducted, assaulted and set alight after being accused of stealing sheep.