Fiji officials are currently gathering documentation the ensure Wests Tigers' Samuela, Sione and Latu Fainu can play for the Bati in the World Cup.
With a 40-man squad - including Mark Nawaqanitawase - submitted to the FNRL board, behind the scenes work has begun on returning the Bati to the semi-finals, where they played for three consecutive tournaments before bowing out in the quarters to New Zealand in 2022.
"There's three players at Wests Tigers whose grandmother is Fijian - and that's the Fainu boys," said returning coach Mick Potter.
"We're trying to get that over the line. They're just trying to get the documentation right.
"Like I say, the grandmother's Fijian but finding records of that is difficult. It seems to be common knowledge but nothing's happened yet. I'm very hopeful. They'd be great players to be playing for Fiji.
"There was a young hooker as well, Josese Laiu, he stepped in for Api Koroisau. He's available, he's in the squad."
Potter earlier said he remained hopeful Nawaqanitawase would represent his father's homeland.
He said Super League players - along with Reagan Campbell-Gillard from the Championship - were among others under strong consideration for selection at the start of October.
"There's no overarching philosophy but players in the Super League need to be considered," the coach said.
"Again, we're so bulked up with wingers. We lack in a couple of positions and we need to fill those with someone."
Leeds' Maika Sivo would seem a certainty, Huddersfield's Taane Milne and Castleford's Semi Valemei, Mikaele Ravalawa and Jason Qareqare are four more candidates while Potter namechecked Bradford's Waqa Blake.
Super Sivo gets 4 in Vegas
The former Canterbury, St George and Perth fullback is unsure of the availability of Bati captaincy candidate Tui Kamikamica, who suffered a stroke in March and a training setback in June.
"I'm trying to contact him and I haven't been successful at this stage," said Potter.
"I might have to ring (Storm football manager) Frank Ponisi and find out what the story is, how he's progressing.
"I'm pretty sure Api Koroisau and Viliame Kikau will be a couple of our leaders."
Potter, who achieved coaching success with Catalans and St Helens in the Super League before stints with Wests Tigers and the Bulldogs in the NRL, oversaw Fiji’s greatest moment at international level when they eliminated New Zealand at the quarter-final stage of the 2017 World Cup.
Kikau, Koroisau, Kamikamica and Knights prop Jacob Saifiti were members of the 2017 Bati team.
Former Bati captain Kevin Naiqama, who still plays in the Newcastle competition, is set to be a member of Potter's staff.
Match: Fiji v Cook Islands
Round 1 -
home Team
Fiji
away Team
Cook Islands
Venue: McDonald Jones Stadium, Newcastle
Match: Lebanon v France
Round 3 -
home Team
Lebanon
away Team
France
Venue: CommBank Stadium, Sydney
Match: Australia v Fiji
Round 2 -
home Team
Australia
away Team
Fiji
Venue: Suncorp Stadium, Brisbane
