A new developer blog has been published on the Star Wars: The Old Republic site that lays out plans for class changes and addressing balance issues in update 1.4. Developer Austin Peckinpaugh lays out the details including how the team will address "crowd control and the Resolve system, the subsequent class changes made to harmonize with those control adjustments, and a reevaluation of stealth spec gameplay".
Our goal for crowd control in The Old Republic is to provide abilities that allow the player to take control of a fight, turn the tables, and feel great for taking charge. We know that this can be improved, so I want to explain our philosophy and our motivation for change before going into detail on the changes themselves.
Prior to Game Update 1.4, it was simple to control a target from a great distance and do so instantly, often as a surprise opener or from an unseen location off-screen. The way control abilities were designed encouraged this behavior, and the resulting gameplay could be frustrating.
Read more on the Star Wars: The Old Republic site.