PlayStation Experience 2016's PlayStation Showcase ended with a huge reveal. The Last of Us Part II was revealed in a trailer featuring Ellie and Joel sometime after the events of The Last of Us.
The game is said to be in a very early state of development and not even a tentative release date was mentioned. It seems that The Last of Us Part II will center around vengeance, as Ellie makes a comment about not stopping until she kills everyone of some group. Which group? Who knows? Hopefully we'll find out more on Naughty Dog's sequel to the hit game The Last of Us soon.