A study drafted by real estate entity Cushman & Wakefield and leaked to New York's Daily News says that the WTC towers won't be fully constructed and occupied until 2037.
The five towers, designed by David M. Childs of SOM, Lord Norman Foster, Richard Rogers, Maki and Associates and the Port Authority respectively have been fraught with delays, but the report suggests the difficulties will lie with demand for the facilities.
The report also states that construction on Richard Rogers' Tower 3, the third tallest of the towers, will not even begin until 2026.
As quoted in the Daily News, while the Port Authority are calling the study a 'market driven analysis', the office of Larry Silverstein is denouncing the the study and the Port Authority as 'pessimistic':
"The Port Authority's position seems to be based on a totally pessimistic attitude about New York's economic future," said Janno Lieber, director of Silverstein's World Trade Center redevelopment effort.