A forum post on The Old Republic's official website details what fans can expect in the month ahead.
The game's director James Ohlen says that his team is working on new Operations, Flashpoints, and Warzones. "Next month we're going to be releasing a new Flashpoint and an expanded Operation," he says in the post. "The new Flashpoint involves a plague that could have significant repercussions across the galaxy. It takes place on a brand new world and involves some pretty epic battles. I can't go into much detail, but be prepared for something different. The expanded Operation takes the existing Karagga's palace scenario and more than triples it in size. It includes three new boss monsters and some pretty epic set pieces. You won't believe the last boss."
BioWare hopes to add it to the game in early January.
Source: Bioware SWOTOR Official Site