Zenimax Online Studios has finally come out with some official info regarding the console versions of The Elder Scrolls Online. Game Director Matt Firor said that "we have been (and will continue to be) steadily working on the Xbox One and Playstation 4 versions". They are playable, "but there's still some work to do before we can set an official launch date". They want to make sure that "two of our most important systems still in development - the Justice and Champion Systems - are included in the console release".
It's also important to note that the Xbox One and Playstation 4 versions of The Elder Scrolls Online are not just ports of the PC/Mac game. "We have completely replaced the PC user interface with a console-specific UI designed from the ground-up with a controller and a living room play experience in mind. We've also added voice chat and full integration with XBL and PSN."