According to the official Elder Scrolls Online website, ESO has been delayed at least 6 months for the consoles.
Here's the announcement:
"When does The Elder Scrolls Online officially launch? The Elder Scrolls Online officially launched on April 4, 2014 on PC and Mac. While it has become clear that our planned June release of the console versions isn't going to be possible, we have made great progress, we have concluded that we'll need about six more months to ensure we deliver the experience our fans expect and deserve. For additional information on the delay, please see this blog post (link)."