Not considered due to Investec Super Rugby commitments, Northland halfback Sam Nock hasn't been named in the initial camp.
Heading into camp from 27 November to 2 December, with further camps planned in March and April, NZ Under-20s' head coach Scott Robertson is looking forward to unleashing the talent on offer.
"It's always fantastic to see a new bunch of guys come through, and it's always great to see who's willing to work hard and take this incredible opportunity," he said.
"These boys will know they have a very real chance of turning rugby into a profession for themselves.
"We saw some really exciting talent at the national under-19 tournament in Taupo this year, which is hugely encouraging as we consider all our options."
Adding the main focus of the first camp will be about giving the "boys a taste of this unique national team environment," Robertson said "we'll lay out our expectations, and we'll have a good look what sort of nick they are in".
"This summer, they'll need to exercise some discipline around nutrition and training if they want to stay in the mix. The fact that next year's tournament is being played in England should be a huge motivator for these guys."
Robertson will have two new assistant coaches with him for the 2016 campaign.
Taranaki's Willie Rickards has been appointed as an assistant alongside Hawke's Bay Craig Philpott. They replace Tana Umaga, who now heads the Blues Super Rugby team, and Leon MacDonald, who was appointed head coach of Tasman.
"Both Willie and Craig come from excellent provincial rugby environments, and I am excited about what both will bring to our campaign," Robertson said.
The New Zealand Under-20s will play in an Oceania tournament in Australia next year before preparing for the World Championship in Manchester.