The former Wales boss was widely expected to step down after the upcoming tournament, which will be held on the All Blacks' home turf in September and October.
But the 65-year-old says that he may not be ready to retire just yet and will delay his decision until the end of the World Cup.
"What I have made a decision on, is to be totally focused on the rugby World Cup and then in November to give some thought to the future," Henry said.
"One thing is, I'm not too old, I'm just late middle-aged. They (have) just given me the pension now."
Henry's comments may come as a blow to long-time assistant Steve Hansen, who recently stated that he was ready to step up and take over from his mentor.
Meanwhile, Henry says the 30 players he pickes in his Tri-Nations squad on July 10 - one day after the Super Rugby final - will likely make up his final squad for the World Cup.
He added: "It'll be pretty close to (the World Cup squad), I think in the ideal world it should be the same."
Hurricanes centre Ma'a Nonu is not expected to be dropped despite learning that he would not be offered a new contract by his club at the end of the season.
Henry said: "When he is on the job he is a world class player and he has the ability to break the line better than the majority of midfield players in the world. And he has played very well for us."
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