Israeli Prime Minister Binyamin Netanyahu and Palestinian President Mahmoud Abbas are set to meet US President Barack Obama separately in New York this week, with a trilateral meeting likely.
Mr Obama is expected to meet Mr Netanyahu and Mr Abbas individually before chairing a joint session.
If the meeting goes ahead, the three leaders are likely to meet at the Waldorf-Astoria hotel in New York, where Mr Obama is staying for the meeting of the UN general assembly.
Israeli commentators denounced the meeting as a "photo opportunity" and said it would be wholly symbolic.