It's probably going to be Uncharted 4, which is cool, but I always liked how Naughty Dog created at least one new IP each generation (PS1 has Crash, PS2 has Jak, PS3 has Uncharted and The Last of Us). And yes, I agree with others, Jak 4 should be made.
Link to original article: http://www.ign.com/articles/2013/05/08/is-this-nau
Is this Naughty Dog's PS4 project?
"The power of Podcast Beyond’s listenership has struck again. This time, NickoMcBrain (I assume that’s not his actual name) comes through with some fascinating stills from a video chronicling the development of Naughty Dog’s upcoming PS3 exclusive The Last of Us.
In the video embedded below, Jucker found something at the 2:42 timestamp."
"In the background of that frame, you can see two character models that don’t at all look like they belong in The Last of Us. In fact, as our Podcast Beyond-listening friend suggests, they look 'a lot like 17th/18th century clothing or maybe even pirates.' I couldn’t agree more."
I really hope it will be a new Jak and Daxter! I'd loved to see Uncharted 4 but I think it's time to take a brake from Nathan Drake and bring back the -beloved- dynamic duo who made me a Naughty Dog fan. Please, let the next project from ND be Jak 4. Amen.
I love how people say Uncharted 3 was rushed but yet it gets an average score of 9 and was pretty much the game of the year.
I think Uncharted second team should make Uncharted 4 just as a system seller and plus everyone loves the games. The team that made The Last Of Us should make The last of us 2 and the uncharted 4 team should work on a new ip. If the team ever expands to three teams then they should make Jax n dexter but honestly I like the direction there going in and Jak n dexter is of the past. I love these new games like Uncharted and the last of us. There movie like thrillers and they should keep on making content like this as much as I love Jak n Dexter they shouldnt even waste there time because braoder audience is going to purchase the games they are releasing not jak n dexter.
Much to everyone's dismay, Naughty Dog has a track record for creating an entirely new IP each generation and sticking with it. (crash bandicoot, jak and daxter, uncharted). However The Last of Us was the first time the developer broke its own mould.
I don't see an Uncharted 4 or a Jak and Daxter in the pipeline. I'm going to bet that Naughty Dog will instead focus on a new IP, possibly a more multiplayer oriented one with a post-apocalyptic theme.