NEW YORK (AP) - Long-delayed plans to build office towers, transportation links and cultural spaces at the World Trade Center site are again getting new deadlines and price tags.

The Port Authority of New York and New Jersey, in a report to be released Thursday, is expected to delay a multibillion-dollar transit hub it is building until 2014 and stagger the schedules for four planned office towers to the needs of the commercial real estate market.

Responding to public pressure by the mayor and the governor, the agency that owns the 16-acre site is expected to prioritize the memorial to the Sept. 11 terrorist attacks and commit to opening the reflecting pools that mirror the twin towers' footprints by the 10th anniversary.

In June, Gov. David Paterson ordered a re-evaluation of more than a dozen interconnecting projects on the site. The agency's new executive director, Christopher Ward, said all of the projects were over budget and behind schedule.

He listed 15 obstacles to rebuilding, including the logistics of construction around a working city subway line, the dismantling of a toxic tower where a trade center tower is planned and the design of a transit hub that overlaps with the memorial.

The Port Authority last week proposed a redesign of parts of architect Santiago Calatrava's terminal that could save hundreds of millions of dollars, although the hub is still expected to be half a billion dollars over its $2.5 billion budget, with a completion date delayed about three years to 2014.

The Calatrava terminal presented itself as one of the biggest obstacles to the site because it connects to a maze of office towers, a performing arts center, the memorial, an underground parking/security center and rebuilt city streets.

The trade center site has had evolving deadlines for most of its projects. Former Gov. George E. Pataki once predicted construction of the signature Freedom Tower skyscraper would be nearly complete by 2006, two years after groundbreaking. The latest plans call for the redesigned tower to open in 2012.

Since Ward issued his initial report, the financial crisis that shut down Lehman Brothers and Merrill Lynch - once a candidate to move into a tower at ground zero - has imperiled the city's real estate market. Experts have said the 10 million square feet of office space destroyed on Sept. 11 will likely have to be introduced more slowly into the downtown market.