We learn from Bethblog that they're planning to rennounce the subscription model for ESO starting March 17.
We're still waiting for a Todd Howard announcement though... :)
"Beginning on June 9th TES fans on Xbox One and PS4 will be able to endlessly explore The Elder Scrolls® Online: Tamriel Unlimited! This edition of the game features all of the gameplay from the original PC release, including all the new content and changes made over the past year, and it comes without requiring a monthly game subscription fee!" - Bethblog.com