Update: Bethesda has confirmed that The Elder Scrolls Online is delayed for PlayStation 4 and Xbox One. The company assures that it is working as quickly as possible to get the game to console players, but that it could take up to six additional months.
The delay stems from integrating the MMO systems with each of the online networks run by Microsoft and Sony. "We continue to work on the console versions of ESO, and game development has been progressing steadily, but we are still working to solve a series of unique problems specific to those platforms," a statement on the company's website reads. "Integrating our systems with each console manufacturer’s networks -- which are both different from the PC/Mac system as well as different from each other—has been a challenging process."
As a gesture of good will, Bethesda has made an arrangement with both Sony and Microsoft to get players into the game now on PC with a discount on console versions when they are released. If you purchase The Elder Scrolls Online before the end of June, you'll be eligible for a full version of the game on PS4 or Xbox One for only $20 (payable when those versions are available). This includes the ability to transfer characters over and another 30 days of game time.
http://www.gameinformer.com/b/news/archive/2014/05/08/report-the-elder-scrolls-online-delayed-for-xbox-one-ps4.aspx