Fans will see a very different version of Quinn (Rupert Friend) when Homeland returns for Season 6 in January.

At the end of the show's well-received fifth season, the fan-favorite character appeared to die in the final scenes. On Thursday, during the Television Critics Association fall previews, showrunner Alex Gansa revealed that although Quinn survived, "his very existence was in question, so you're going to see a very changed and altered Quinn."

"I think Quinn, this coming season, will really represent a profound and familiar casualty of the war on terror for our audience," he continued. "What he endured last year is different from what he'll go through this year. This year will be fused with his daily relationship with Claire [Danes'] character."

Ganza also revealed that this season, which will be set in New York after the series spent much of last season in Germany, will focus on the continued ramifications of 9/11 on the United States.

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"We are still dealing with the repercussions of that event in this country, and some would argue that we had a huge overreaction to that event, as devastating as it was. Those are the issues that we're dealing with this season," he said.

The series will also explore the intelligence community's responsibility to educate the new female president-elect, who Gansa described as being part Hillary Clinton, part Donald Trump and part Bernie Sanders.

"If you listen to Donald Trump, there are these people who run the government from administration to administration and they have completely screwed the world up," Gansa said. "There is part of that in our president. There is also a little bit of Hillary, in terms of she's a pragmatist and knows Washington from the inside."

Homeland Season 6 returns Sunday, Jan. 15 at 9/8c on Showtime.

(Full disclosure: is owned by CBS, Showtime's parent company)