User blog comment:Jimeee/Elder Scrolls Online will be subscription based/@comment-131.193.238.148-20130822161220/@comment-24.44.141.89-20130822195441

Did you watch the Sony conference? Playstation Network for PS4 is free but you need to pay for playstation plus in order to play multiplayer. And since this is multiplayer, you need to buy PS+ in order to play the game.