In the mix for 2016 (Updated)
Incumbents from 2015 Australian Team
Lukhan LEALAIAULOTO-TUI, Randwick, NSW - now signed to Reds. 2015 Qld Country NRC (may not appear in NRC due surgery and Team Rehab).
Sione TUIPOLOTU, Southern, Vic. 2015 Melbourne Rising NRC
James TUTTLE, GPS, QLD. Reds 2016 contracted player. 2015 Qld Country NRC.
Campbell MAGNAY, GPS, QLD. Reds 2016 contracted player. 2015 Qld Country NRC.
Harry NUCIFORA, Bond University, QLD. 2015 Qld Country NRC.
Tyrel LOMAX, Tuggeranong, ACT. 2015 Canberra Vikings NRC
Henry HUTCHISON, Randwick, NSW. May miss U20's due to Olympic Games 7's representative duties.
Joey FITTOCK, Sunnybank, Qld (Injury replacement used at the Oceania U20 Tournament) - QLD Premier South Colts
There is no guarantee that the "Incumbents" will be reselected, but having found favour with the selectors this year, there is a fairly good chance that the majority of these will similarly find favour in 2016.
Additionally these young men found favour with other nations selectors in 2015, and are believed to be eligible for Australia in 2016:
Ah-mu TUIMALEALIIFANO, Harlequins, Vic, Samoa 2015
Vunipola FIFITA, Randwick, NSW, Tonga 2015
Siuta (Timote) TAI, Royals, ACT, Tonga 2015
Sam TABUATAMATA, Gordon, NSW, Fiji 2015
Others in the "Born in 1996 or earlier" cohort, with experience at National U20 Championships include:
Qld U20 "Incumbents" from 2015
Izack RODDA - Easts, QLD. now signed to Reds. Doesn't appear in one of the 2015 QRU NRC teams due to surgery and Team Rehab conflicting with NRC schedule.
Harley FOX - Easts, QLD. Allegedly training with Rebels EPS.
Izaia PERESE - Easts, QLD - 2015 Qld Country NRC.
Shambeckler VUI - University, QLD
Angus SCOTT-YOUNG - University, QLD - QLD Premier North Colts
Tuaina TUALIMA - Sunnybank, QLD - QLD Premier South Colts
Alex MAFI - Bond University, QLD. (Team Rehab) - now signed to Reds. 2015 Qld Country NRC.
Barbarians U20 "Incumbents" from 2015
Nili FIELEA - Cottesloe, WA
Jamie KOTZ - Gungahlin, ACT
Jordon FULIVAI - Gungahlin, ACT - Not considered for 2015 Canberra Vikings NRC due injury.
Phil BRADFORD - Wanderers, Newcastle, NSW
Jordan JACKSON-HOPE - Tuggeranong, ACT
RJ SA'AGA - Melbourne University, VIC
Ta HOSEA - Harlequin, VIC
NSW U20 "Incumbents" from 2015
Ed CRAIG, Eastwood, NSW
Francis BROWN, Sydney University, NSW
There is no guarantee that these "incumbents" will be re-selected for their state team/Barbarians again, nor that they have the capability to step up to the National level solely because they have attended a previous National Championships, but they represent a good start point for discussions on selections.
Wildcard (checking on eligibility)
Taniela TUPOU, Brothers, QLD - 2015 Qld Country NRC
Additional "Bolters" in 2015 NRC squads:
James WILKINSON, Gordon Shute Shield, NSW. 2015 North Harbour Rays NRC.
Nicholas JOOSTE, Hale School, WA. 2015 Perth Spirit NRC
Moses SOROVI, University, QLD - 2015 Brisbane City NRC
Maclean JONES, University, QLD - 2015 Qld Country NRC
Declan MOORE, Sydney University, NSW. 2015 Sydney Stars NRC.
Onehunga HAVILI, Palmyra, WA. 2015 Perth Spirit NRC
Mack MASON, Club TBA (former Melbourne Storm U20 NRL). 2015 Qld Country NRC.
Toro REEDY, Joondalup, WA. 2015 Perth Spirit NRC.
Jordan UELESE, Melbourne University - VIC. 2015 Melbourne Rising NRC.
Guy PORTER, Sydney University, NSW. 2015 Sydney Stars NRC squad.
Theo STRANG, Scots College, NSW. 2015 Sydney Stars NRC squad. (No games)
Where the above all fit in a team?
Prop:
Taniela TUPOU
Francis BROWN
RJ SA'AGA
Shambeckler VUI
Vunipola FIFITA
Tyrel LOMAX
Toro REEDY
Phil BRADFORD
Hooker
James WILKINSON
Ed CRAIG
Alex MAFI
Siuta (Timote) TAI
Declan MOORE
Jordan UELESE
Lock
Tuaina TUALIMA
Angus SCOTT-YOUNG
Izack RODDA
Lukhan LEALAIAULOTO-TUI
Back Row
Ta HOSEA
Harley FOX
Maclean JONES
Halfbacks
Harry NUCIFORA
James TUTTLE
Moses SOROVI
Theo STRANG
Flyhalf
Nicholas JOOSTE
Jordan JACKSON-HOPE
Mack MASON
Centres
Izaia PERESE
Sam TABUATAMATA
Ah-mu TUIMALEALIIFANO
Henry HUTCHISON
Sione TUIPOLOTU
Back Three
Campbell MAGNAY
Jordon FULIVAI
Jamie KOTZ
Nili FIELEA
Joey FITTOCK
Guy PORTER
Onehunga HAVILI
Additional NRC Players added to the list posted earlier as Squads have been announced, and included in various NRC teams as the season progressed.
Edit. That is 40 players, and does not include any Parachutists from the Class of 2015, and there are always a few, unless they have already been named in a NRC squad (Jooste & Strang).