Plans call for a part of the restaurants and shops that will populate the 300,000-square-foot pedestrian mall to open their doors in time for New Year's Eve revelers.
Gray said about a quarter of the businesses would open in December with others to follow in February.
The High Roller, the giant Ferris wheel, is expected to be completed by year's end, but Gray would say only that it would open "during the first half of 2014," after safety tests.
Officials at Caesars Entertainment Corp., the parent company, estimate that more than 20 million visitors walk past the site each year.
The mall will also include the only Brooklyn Bowl bowling-and-music venue outside of the popular New York City original. Besides a 2,000-seat performance area, the location will host a restaurant and, of course, a bowling alley.
Each of the Ferris wheel's 28 cabins will hold 40 guests. It will take 30 minutes to make one revolution.
Gray said tickets would be in the $30-$35, comparable to the London ride.
"This is Vegas and we intend to do Vegas right," he said. "This will be a very entertaining experience from start to finish."