-Collateral Damage - Help save civilians caught in a battle between the Borg and Undine.
-Recovery - In this follow-up to Collateral Damage, Rescue colonists infected by the Borg virus and fight Undine determined to destroy them!
-State of Q - Q transports you back in time to do him a special favor.
-Infected - Investigate a federation station that Starfleet has lost contact with.
-The Cure - A planet has been completely taken over by the Borg. Fight them for control of the planet.
-Khitomer Accord - Travel back in time and uncover and participate in the events that led to the release of old Borg you encountered in the Tutorial Episode.
-Into the Hive - Track down a missing Starfleet captain and come face to face with the new Borg Queen.
-Klingon Fleet Actions - Form up with your closest friends and do battle in large engagements.
-A New Klingon Ship - You asked for it, we made it: A Tier 2 Klingon Battle Cruiser.
-Klingon Star Clusters - Seek out new life and civilizations ... and subjugate them! Additional PvE content for the Klingon faction.
-Federation vs. Federation PvP - Practice against your allies before engaging your enemies.
-New Ground Maps - We'll be adding a new Ground Assault PvP map, as well as a new ground Fleet Action.
-More IP Locations - Check out Rura Penthe and our whole solar system, from Mercury to Pluto.
Full details on the Star Trek Online website.