Naughty Dog is working on two "brand new experiences" in addition to this summer's PS4 re-release of The Last of Us, creative director Neil Druckmann has revealed.

One of them is PlayStation 4's Uncharted, but what's the other? A sequel to The Last of Us? Druckmann isn't saying.

"I think if there was nothing but remakes [on PS4], that would be pretty sad for the console," Druckmann told EDGE. "Just like any system out there, any medium, it's going to be a mixture. We're working on this re-release, but at the same time we're working on two other brand-new experiences.

"When Blu-ray came out, the first thing is you buy all these rereleases of movies that you've loved, and then you see Gravity and you can't wait to see it on your Blu-ray. There's always room for a mixture of old and new."

Naughty Dog has yet to confirm whether or not it will be returning to The Last of Us with a new game, but the studio is involved with an upcoming movie based on the IP.

Uncharted PS4 has yet to be dated.