Knights of the Fallen Empire grow up, put their big boy pants on, and become Knights of the Eternal Throne. Probably.
Star Wars: The Old Republic developer BioWare has announced the next expansion: Knights of the Eternal Throne.
SWTOR: Knights of the Eternal Throne is due sometime in northern autumn, and is described as one of the largest updates in the game's history. It includes "more of BioWare's trademark cinematic storytelling, as well as exciting new game features".
The trailer above is not actually for Star Wars: The Old Republic - Knights of the Eternal Throne; it's a celebration of the MMORPG's fifth birthday showing off community achievements. You can learn more about that on the SWTOR five years website. There's doesn't seem to be a trailer for the new expansion yet.
In fact, there's very little going around about Knights of the Eternal Throne besides the image above and the title, but BioWare and EA have opened a section of the SWTOR website where you can register for updates and presumably get information as it is released.
Another way to prepare for the expansion is to play its prequel story in immediate precursor Knights of the Fallen Empire. Don't own this expansion? No worries: there's a trial on now allowing you to experience Chapter 1 for free.