The amazing story and gameplay of one of Naughty Dog's best games ever, "The Last of Us," had many of its fans constantly waiting for the next installment to drop.

There are so many rumors and speculations about the highly anticipated post-apocalyptic action game. But which of these are confirmed? Here are all the things we've heard about the sequel so far.

Is "The Last of Us 2" In Production?

Seasoned voice actor veteran Nolan North, the actor who played Nathan Drake in Naughty Dog's other hit series "Uncharted," has apparently dropped the bomb at MetroCon 2015, as seen on a video uploaded by Youtuber mrgeekmeout.

"I know they're doing a 'Last of Us 2,'" North told the audience during the Metrocon panel.

Naughty Dog's Neil Druckmann did has confirm that they have been working on "prototypes for different ideas within 'The Last of Us' universe," although there are no recent confirmation that the sequel is already in the works.

Is "The Last Of Us 2" Delayed Because Of "Uncharted 4"?

Technically, nothing has been delayed yet because "The Last of Us 2" has not even started production yet, but the reason why the studio has not started on it yet is because they are still busy with "Uncharted 4."

"Without going into specific genres [there were] ideas outside the 'The Last of Us'," Druckmann told GamesRadar . "All those things were left on hold when we had to come onto 'Uncharted 4' to direct the project."

So When Will They Start Working On "The Last Of Us 2"?

Druckmann said that they will start on "The Last of Us 2" after "Uncharted 4"'s final single DLC release.

"And then, once we have enough resources, resurrect all those prototypes," the director said, "see where we're at, see where the teams at, what they're excited for and go from there."

As for the release date, it could be anytime in the next four to five years, but until Naughty Dog announces anything, expect more rumors and speculations to come from excited fans.

More "The Last of Us 2" news will be revealed here so stay tuned.