While speaking with IGN, Naughty Dog Co-President Evan Wells revealed that Uncharted 4 will retain the light-hearted nature of previous instalments of the franchise. This debunks previous speculation that Uncharted 4 would have a darker tone.
Uncharted is a completely different franchise, and appeals to its audience for completely different reasons. I don’t think The Last of Us marks a new direction in tone that all of our future games are going to take on. We’d alienate a lot of our Uncharted fans. We want to keep it a light-hearted romp. I think from a technical standpoint we’ve learned some things from The Last of Us that will feed into Uncharted – in fact, it strengthens our desire to keep them distinct.
Uncharted 4 was first teased at the PlayStation 4 launch event, and was fully unveiled at E3 2014. According to Nolan North, the voice actor of protagonist Nathan Drake, it may be the last game in the franchise. Uncharted 4 is set for a release sometime in 2015, exclusively on PlayStation 4.