Naughty Dog has a new IP in the works

[Raziel123]

COX said:

Raziel123 said:
they're doing TLOU HD, Uncharted 4, and an unknown game (could be anything)

"Wells further confirmed that the newest revelation out of the studio – that The Last of Us leads Bruce Straley and Neil Druckmann are leading Uncharted 4’s development -- shouldn’t affect the production of the second, still-unknown game"

 

Well "the second, still-unknown game" TLOU isn't an an unknown game. so there's probably U4 and two other unknown games. 

that doesn't mean there's a second unknown game, it means that the second game they are working on (excluding the remaster) is unknown. so it's just Uncharted 4 and an unnanounced game