The award was originally limited to players under 25 who, before the start of the season, had taken to the court no more than five times.
But the criteria has been simplified, with any player 22 years and under eligible for the award, regardless of previous ANZ Championship and international experience.
Naoupu, who has played a key role in the Magic's remarkable finals charge, will likely be the favourite to take out the rookie award.
Two of Naoupu's teammates also figure in the nominees for the season MVP award, with Laura Langman and Irene van Dyk selected with Mystics captain Temepara George, Vixens midcourter Madison Browne, the Pulse's Australian import, Caitlin Thwaites, and Swifts shooter Susan Pratley for the league's top individual prize.
Four of those players - Langman, van Dyk, George and Browne - are set to feature prominently for their sides in this weekend's playoffs.
But it is bricks and mortar, rather than the athletes, that have dominated the discussion in the lead-up to the finals.
The Claudelands Arena, which the league boasts provides an "accessible, rich experience for fans and supporters" - curiously leaving off the actual players from that list - is on its way to being a sell-out for the Magic's sudden-death playoff against the Adelaide Thunderbirds.
An extra stand was added yesterday to maximise the venue's capacity.
The Magic this week went public with their concerns over the court surface at Claudelands, claiming the wooden sprung floor does not have any "give" and was potentially injurious to the players.
But on the upside, after playing three matches in Hamilton already this season, they have intimate knowledge of the apparent dead spots on the court - how's that for home advantage?
The Melbourne Vixens claim some of their home advantage has been lost by moving their fixture across the road from their regular home court.
In a first for netball, tomorrow's major semifinal between the Vixens and Mystics will be played at Rod Laver Arena - one of the premier tennis venues.
The stadium has a capacity of 14,000, but Vixens' management are expecting the crowd for tomorrow's match will be closer to 10,000.
Testing timeANZ Championship - playoffs
Major semifinal
Melbourne Vixens v Northern Mystics
Tomorrow, 4.20pm, Rod Laver Arena, Melbourne
Umpires: Sharon Kelly (Australia) and Jono Bredin (NZ)
Minor semifinal
Waikato/Bay of Plenty Magic v Adelaide Thunderbirds
Monday, 7.40pm, Claudelands Arena, Hamilton
Umpires: Rachael Ayre (Australia) and Mandy Nottingham (NZ)
ANZ Championship MVP nominees:
Laura Langman (Waikato/Bay of Plenty Magic)
Susan Pratley (NSW Swifts)
Madison Browne (Melbourne Vixens)
Caitlin Thwaites (Central Pulse)
Irene van Dyk (Waikato/Bay of Plenty Magic)
Temepara George (Northern Mystics)
Best young player nominees:
Storm Purvis (Southern Steel)
Julianna Naoupu (Waikato/Bay of Plenty Magic)
Amorette Wild (NSW Swifts)
Te Huinga Reo Selby-Rickit (Central Pulse)
Kayla Cullen (Northern Mystics)