"Having said that, I'm sure all the current squad are fully committed to the cause. The rules are there to protect club and country and we will be applying them."
The next step in the World Cup campaign will come in the next few days when coach Ricki Herbert names an 18 or 19-strong squad to play the remaining games in stage three of the Oceania World Cup qualifiers on March 22 and 26.
"We are desperate to win that first game against New Caledonia," said de Jong.
"Win that and we are through to the play-off with the fourth-placed Concacaf team in November. We certainly don't want to have our World Cup hopes reliant on getting a result against the Solomons in Honiara on March 26.
"I would expect all players Ricki names will be busting a gut to be part of that."
New Zealand's most-capped international, Ivan Vicelich, has already confirmed his availability for the rest of this year and probably beyond.
New Zealand Football has yet to confirm where the March 22 game against New Caledonia will be played although it is now between Westpac Stadium in Wellington and Dunedin's Forsyth Barr Stadium, with the southern city perhaps slightly favoured given the long gap since it last hosted an international of this standing.
While they refuse to get ahead of themselves in planning for the Concacaf play-off, de Jong said there had already been some tentative approaches for what he sees as a "huge game" - on and off the field.
The national men's under-20 and under-17 teams are also preparing for their World Cups.