Westworld creator Jonathan Nolan has revealed that the second season of the series will be expanding, and will feature a Japanesesamurai park.

Warning: This article contains spoilers for Westworld's season one finale.

The dramatic finale of the show's first season included a glimpse at a feudal Japanese theme park called Samurai Westworld, and showrunner Nolan said that it will be explored in future episodes of the ambitious sci-fi series.

Speaking to The Hollywood Reporter, Nolan said: "I think the fun and challenge of this show is that season upon season, we'll only get more ambitious. We will ultimately encounter other worlds. Just when and where remains to be seen.

"One of the aspects of the original film that we loved is the idea that this is a place you can go where you can engage in whatever fantasy you want. There are aspects of going to the park that would appeal to everyone I think, regardless of gender or background. But there are other places here. This park contains multitudes. We hope to explore that in the seasons going forward."

Co-creator Lisa Joy added that Samurai World would also allow for a more diverse cast for its second season.

"It's wonderful to work with actors we haven't worked with before," Joy said. "This allows us a lot of access to Asian actors and the Asian community which is very important to me as part-Asian myself."

Nolan spoke about when viewers can expect the second season of Westworld, and unfortunately for eager fans, it's looking like it definitely won't air before 2018.

"Look, we said to the network very early that this was a different kind of show, having gone through the experience of making the pilot," Nolan said. "Game of Thrones is incredibly ambitious, and that was part of the reason we knew we wanted to make this show with HBO. Game of Thrones kind of has written the book on production value for television, and how to make something that has all the scope and scale of cinema for a TV show.

"They also have an advantage of having [George R.R. Martin's] amazing books, or had it for the first six seasons, which gives you a leg up. I still don't know how they turn those seasons around in a year. It's astonishing.

"But we knew for ourselves that going forward, the production is enormously challenging and ambitious, and so is the writing. So we said very early on that we wouldn't be able to turn this around every year, and knowing full well that that's been a time-honoured tradition in television. But in film, my other life, on the Batman movies, the best we could do is turn another one around in three years. I really feel like we're splitting the difference here. "

HBO revealed on Monday that Westworld is its highest-rated first season drama ever - beating off stiff competition from the likes of Game of Thrones and The Sopranos.