It closed on New Year’s Day 2010.
The city granted a license to run the restaurant to Dean Poll, who operates the Loeb Boathouse restaurant along the Central Park lake.
But Poll was unable to reach an agreement with the union that represents more than 400 former Tavern employees.
John Turchiano, a spokesman for the New York Hotel and Motel Trades Council, said that Trump and the union have an agreement to run Tavern.
The union has represented workers at Trump properties over the past 30 years and has always had a good relationship with him, Turchiano said.
After the arrangement for Poll to run Tavern fell through, the city turned it into a visitor center for Central Park.
The restaurant’s famous Crystal Room was demolished and replaced with a courtyard featuring gourmet food trucks.
Mayor Michael Bloomberg was noncommittal when asked yesterday about the restaurant’s reopening under Trump’s management.
“Donald Trump is a developer who has lots of good ideas,’’ Bloomberg said. “He’s done an awful lot for the city. If he’s interested, and if there is a restaurant there, we’ll take a look and see then.’’