"Game of Thrones" Will Run for At Least Eight Seasons, Says HBO

"Seven-seasons-and-out has never been the (internal) conversation," said Lombardo at the Television Critics Association Press Tour.

"The question is: How much beyond seven are we going to do? Obviously we're shooting six now, hopefully discussing seven (showrunners David Benioff and Dan Weiss are). (I) feel like there's two more years after six. I would always love for them to change their minds, but that's what we're looking at right now," he elaborated.

Benioff and Weiss have said on repeated occasions they envisioned the series to run for seven seasons.

Lombardo did not rule out the possibility of a spin-off series like "Fear the Walking Dead" and "The Walking Dead."

"I would be open to anything that Dan and David wanted to do-about Game of Thrones or any subject matter," Lombardo said.

"Game of Thrones" is based on George R.R. Martin's fantasy novel "A Song of Ice and Fire".

The fifth season of the show concluded recently while filming for Season 6 has already begun in Belfast.