EA blogs: “Along with the changes to Combat Styles, we wanted to give our players an inside look into one of the big updates coming to gearing in 7.0. Introducing Legendary Items, a new way to customize the play style of your character! Following the philosophy of allowing players more opportunities to personalize their gameplay, we want to dive into how these will be implemented in Legacy of the Sith.”
Source: N4G PC Star Wars: The Old Republic – Introducing Legendary Items