Star Trek Online has announced that Season 11.5 will begin on April 12.
A new episode, Temporal Front, will be released on the same day.
Temporal Front “begins at a post-Iconian War convention attended by leaders representing the Federation, Klingon and Romulan factions. What begins as a peaceful summit quickly turns into chaos, as a threat from the future interrupts the meeting to lead an attack on the embassy. Players must now travel through time and space to prevent the Na’Kuhl from destroying the present by invading our past.”
Season 11.5 also brings “a complete overhaul to the Skill System, plus other new gameplay updates including the Strategist Secondary Specialization, Romulan Admiralty Campaign and Na’Kuhl Red Alerts.”
Source: Press Release