Gamers have no idea about what the game will be about, however Naughty Dog then surprised people by saying that secrets about Unchartered 4 are out there if fans go looking for them.
Up to now no one has found any clue, but it does seem that gamers are getting closer. RobinGaming posted a video on YouTube saying that the secret was in the title of Uncharted 4.
If you take a good look at the title you can see that the wording is on artwork. Along with this there is the number 4 attached to it. The logo of Uncharted 4 is black and white and this could mean that the image is an old one. There was a hint that Unchartered 4 could be set during the 1600s.
So if gamers can find out what image it is, they could find out more about the game.