A group of surviving workers from Windows on the World, the restaurant atop the World Trade Center, finally opened their employee-owned restaurant, Colors, last month. Meanwhile, Adam Block, the consultant who brought Per Se, Masa, and Café Gray to the food court at the Time Warner Center (the deal for his final project there, Charlie Trotter’s, fell apart last week), has been talking to restaurateurs about putting an eatery on top of the Freedom Tower. Early plans called for a rooftop eatery with the entire south side looking toward the Statue of Liberty. Not much else is known since everyone involved in the project since then had to sign gag orders. And according to restaurant-industry insiders, there is also discussion of bringing a fine-dining spot to 7 World Trade Center. Next: Star assistants get pitched on swag