Some images have surfaces during the week of San Diego's Comic-Con, leaving some speculation to be made about a new title in the Uncharted franchise. One of the images show a title of Uncharted 4: Eye of Atlantis.
Beginning with the first image of the title, the logo from Uncharted 3: Drake's Deception contains a distressed font that this image does not match up to. This image contains an entirely different distress font than the other games of the series. This also could be because the story is based underwater. They have just never really seemed to stray from the original logo.
The next two images, as shown on NeoGaf, does not show much but a quote that reads:
"But afterwards there occurred violent earthquakes and floods; and in a single day and night of misfortune [and] your warlike men in a body sank into the earth.
...and the island of Atlantis in like manner disappeared in the depths of the sea.
Plato, 360 B.C."
The last image shows what seems to be Atlantis, eight months prior. Looking at the images, and assuming they were taken by the same person, one can also wonder why they are taken from different angles, when they are just pictures of a screen?
Now, it would be special to see Drake hunt for rare treasures surrounding the intriguing story of Atlantis.