Damon Lindelof has confirmed The Leftovers Season 3 discussions, though the the end game remains untapped.
The Leftovers moved location in Season 2, posing the question of whether potential future seasons would also see the series depart to new locations.
The co-creator says discussions have taken place with HBO about the geography of the show in potential Seasons 3, 4 and 5, but says the long-term storylines have yet to be arced out in favor of “the painting yourself into a corner” method, per Assignment X:
I’ve adopted the [Vince] Gilligan model. I think a show like LOST, that was so mystery-based, it required a certain degree of planning ahead, having the answers to the mysteries, understanding that there might be some improvisation along the way, but it would have been irresponsible to proceed without a road map, even if you decided to deviate from it. The Leftovers, I’m much more comfortable saying, “We’re going to take it one episode at a time.” The collaborative nature of the show, the other writers, the directors, certainly the actors all have a fair amount of input, but we watch what they do and it inspires us. But I do think that, particularly when we told HBO that we wanted to move the show geographically in its second season, they were like, “Is this something that you’re going to do every year?” Like, “Is it going to be The Wire, where Season 2 is the docks and then Season 3 is Amsterdam and Season 4 is the school and Season 5 is the press?” And we essentially had to say to them, “Well, if there was a Season 3, it would probably be this.”