HBO's Westworld has become the network's next big hit, with the series premiere luring in a whopping 12 million viewers, including streaming, on demand and DVR figures. That figure is higher than even the first seasons of Game of Thrones and True Detective, and, speaking of Game of Thrones, some fans have started formulating crossover possibilities between both shows. While it seems unlikely that a crossover between Westworld and Game of Thrones would ever actually happen, it seems that Game of Thrones author George R.R. Martin came up with a crossover idea.

Entertainment Weekly caught up with executive producer Jonathan Nolan, who also co-created the series with his wife Lisa Joy, who revealed that George R.R. Martin actually pitched a crossover similar to the one fans have been suggesting. In the original Westworld movie, there were several different worlds aside from an Old West theme park, including a Medieval World, which could be used to showcase Westeros in the Westworld TV series, in theory. Apparently, George R.R. Martin mentioned the crossover over dinner a few months ago, according to Jonathan Nolan. Here's what he had to say below.

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"We love George and our daughter's first trip anywhere in the world was out to Santa Fe for a screening of The Prestige at his theater, the Jean Cocteau. He's a lovely guy and a stunning writer and it's flattering he would encourage a crossover. We should be so lucky."

The crossover between both shows was compared to Disney creating a new theme park based on their blockbuster Star Wars franchise, except, naturally, there wouldn't be all of the sex and violence shown in both Westworld and Game of Thrones. It would even allow HBO to resurrect beloved Game of Thrones characters such as Ned Stark (Sean Bean) and Khal Drogo (Jason Momoa). Jonathan Nolan wouldn't confirm any sort of crossover, but he isn't ruling it out either.

"We've got an awful lot of material to cover just with Westworld, but you want to stay tuned..."

As for Lisa Joy, her biggest issue with a potential crossover is that she needs to "believe that dragons are real," and as much as she loves George, she "can't lose that for myself." Game of Thrones is currently filming its seventh season, which will air next summer, with the eighth season slated to be its last. If the sci-fi series Westworld keeps growing in popularity, perhaps the creators will eventually explore a crossover with Game of Thrones, but that will likely be far down the line from now.