Naughty Dog may currently be working on a multiplayer game in The Last of Us franchise, but it's also making headway on a new singleplayer project that it remains tight-lipped on. It seems as though Naughty Dog is finished with Uncharted, and it's unlikely that it will return to Crash Bandicoot or Jak and Daxter, but a third game in Ellie's story seems viable, especially given the open-ended conclusion of the second game.