Last month the Herald reported it had uncovered 16 players who appeared to fall short of the traditional interpretation of Fifa's eligibility rules and an investigation into the under-17s could potentially just be the tip of the ice-berg.
The Herald understands that NZF has recently requested a number of exemptions from Fifa for players across a range of age groups.
"Pending the outcome of the appeal we are taking a conservative view, and are in discussions with FIFA," a NZF spokesman said.
Five weeks ago Oceania Football Confederation started investigating a complaint from one of its member associations that New Zealand used ineligible players to win their under-17 World Cup qualifying tournament.
"Following the complaint we received we have asked New Zealand Football to verify the eligibility of certain players in their under-17 and under-23 teams that participated in recent OFC events," said OFC general secretary Tai Nicholas.
"New Zealand Football has asked that we deal with the inquiry after the outcome of the appeal.
"OFC is now taking advice from the chairman of the committee who is leading that preliminary investigation."
If New Zealand lose the Deklan Wynne appeal they will have one last option in their fight to rescue the Olympic campaign - the Court of Arbitration for Sport in Switzerland.
But if New Zealand lose next week, the drums will beat louder for OFC to investigate further eligibility breaches and impose punishments on any wrong-doing.
The New Zealand under-17 team will play at the World Cup in Chile in October.