They are releasing on so many systems and I think that the problem is one of the new consoles. One probably has a real game breaking issue and they don't want to release the PS version and hold off the Xbox version. It would cause a lot of bad blood with the manufacturers and may even be contractually obligated to release at the same time. There has to be a big issue for them to have to change all the ads and many of the current ads have the wrong date now.