The first Australia U20s camp this year will feature four Sevens players, ahead of April's Oceania Championship.
Henry Hutchison, Simon Kennewell, Tate McDermott and Liam McNamara will all be part of a 48-man camp assembling in the first weekend of April, two weeks out from their first tournament.
Kennewell and McNamara both featured in last year's U20s campaign, but Hutchison was tied up with preparations for the Rio Olympics.
The lineup has 14 returning players, after fielding a relatively young team last season, including Super Rugby capped players Izaia Perese and Sione Tuipulotu.
"This camp will be the first opportunity we have to get content across to our players, as well as skill evaluation and execution. It will be a high intensity camp and we need to tick the box on a lot of critical stuff," head coach Simon Cron said.
“We will be putting guys into different scenarios and seeing how they play as well as start to develop our culture and identity as a group.
“The door is still open for players in the Super U20s Championship as we are always watching and looking for players who will suit the way we want to play the game.”
SQUAD
BMW Australia U20s extended squad
Forwards
Harry Hoopert, QLD
Harry Johnson-Holmes, NSW
Cody Walker, NSW
Sham Vui, WA
Harry Chapman, NSW
Gavin Luka, QLD
Vaauli Faamausili, VIC
Angus Wagner, ACT
Jordan Uelese, Melbourne Rebels
Phil Bradford, NSW
Efi Maafu, QLD
Tom Horton, NSW
Harry Hockings, QLD
Angus Blyth, QLD
Ryan McCauley, NSW Waratahs
Esei Haangana, VIC
Darcy Swain, ACT
Angus Scott-Young, Queensland Reds
Max Girdler, NSW
Lachlan Swinton, NSW
Reece Hewat, QLD
Rob Leota, Melbourne Rebels
Rob Valetini, Brumbies
Liam Wright, QLD
Angus Allen, ACT
Brodie Leber, ACT
Backs
Harrison Goddard, VIC
Harry Nucifora, QLD
Ryan Lonergan, ACT
Theo Strang, NSW
Tate McDermott, Aussie 7s
Liam McNamara, Aussie 7s
Hamish Stewart, QLD
Nick Jooste, Brumbies
Tony Hunt, QLD
Sione Tuipulotu, Melbourne Rebels
Izaia Perese, Queensland Reds
Dylan Riley, Queensland Reds
Esere Chee Kam, NSW
Len Ikitau, ACT
Henry Hutchison, Aussie 7s
Simon Kennewell, Aussie 7s
Jayden Ngamanu, Queensland Reds
Angelo Leaupepe, VIC
Will Eadie, QLD
Jack Maddocks, Melbourne Rebels
Clay Uyen, WA
Semisi Tupou, VIC