You can't get most NYC tourists to go 10 blocks away from Times Square. You aren't going to get them on a bus to New Jersey.
American Dream is expected to open in the spring of 2019, at which time it’s estimated that it will draw 30-40 million visitors a year, many of whom are projected to be tourists visiting NYC. There will be a commuter shuttle from the NJ Transit stops at the Meadowlands and Secaucus, as well as a direct bus route from Port Authority.