Høiby, 29, will appear via video link because of unspecified health reasons, almost three months after his trial came to an end on 40 charges, including four counts of rape. He denies the most serious offences but admits some of the lesser charges involving drugs and traffic offences.
Israeli Americans Judi Weinstein Haggai, 70, and her husband Gadi, 72, were killed during the 7 October 2023 attacks.
Filipino authorities are studying a new lead in a case that gripped the nation.
Alexander Troufanov, Yair Horn and Sagui Dekel-Chen were handed over to the Red Cross on Saturday morning.