Panthers hooker Apisai Koroisau, forward Viliame Kikau, Eels winger Maika Sivo and Waqa Blake are expected to fly out to the UK to join the Vodafone Fiji Bati camp ahead of the Rugby League World Cup next week.
Bati coach Jo Rabele was waiting for the naming of the Kangaroos squad to proceed with his plans and preparation with the squad.
Meanwhile Parramatta Eels forward Regan Campbell-Gillard has been named in the Australian Kangaroos Rugby League World Cup squad.
Gillard was initially named in the Fiji Bati squad last month.
The Fiji Bati will take on the Kangaroos in their first pool match at 6.30 am next Sunday.
They will later meet Italy on October 23rd and Scotland on October 30th.