The Last Of Us 3 Not Ruled Out, But Director Hasn't Decided What's Next For Naughty Dog - GameSpot

With the imminent release of The Last of Us Part II, director Neil Druckmann is undecided on another sequel or something new.
The Last of Us Part II is an upcoming third-person action-adventure survival horror video game from Naughty Dog.

Joystick & Mouse

News - June, 2013

The Last of Us Part 3 Probably Isn't Naughty Dog's Next Project

The Last of Us Part 3 Might Not Be Naughty Dog's Next Big Game

Last of Us reviews roll in : r/gaming

The Last of Us Part 3 leak teases new group of characters for Naughty Dog's sequel - Dexerto

A couple Mazin and Druckmann quotes regarding the HBO series : r/thelastofus

Video Games :: All Things Andy Gavin

Asked about The Last of Us Part 3, Neil Druckmann says we have other projects in the works at Naughty Dog

Naughty Dog is currently not working on something Jak and Daxter related : r/jakanddaxter

The Last of Us Part 2 Screenshots Confirm Trailer Footage Was Captured From PS4 Pro

Naughty Dog fans don't want The Last of Us Part 3

The Last of Us, The Last of Us Wiki

Naughty Dog has started its next game – probably isn't Last Of Us 3