I've publicly stated that an Olympics in NYC would be great for the city and the country. In the aftermath of 9/11, what stronger statement could be made against terrorism. Speculation is that the new towers could be complete around the same time as the start of the Games. Political pressure would certainly make this become a reality. It could be a great "We're Back and even Better" statement to all the naysayers.
The revenue generated from such an event would also be significant. Obviously security would be ridiculous, but I suppose that comes with any event of this magnitude.