The latest episode of the sci-fi TV show Westworld may have gestured to a big change to come on the show: robot reproduction.

The show is based in an amusement park that is run by hosts, created by partners Arnold Weber (Jeffrey Wright) and Dr. Robert Ford (Anthony Hopkins), who appear to be human.

Westworld, now renewed for a third season, aired its most recent show on Sunday, May 20. The episode titled “Akane No Mai” was the first time viewers got a look at hosts Teddy (James Marsden) and Dolores (Evan Rachel Wood) making love.

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The critics and fans alike have theorized possible robot babies or so-called robotots since the first season.

The opening credits for the show’s second season reveals sight of a robot mother and its infant child, which is the largest indication of possible robot reproduction to come.

Additionally, the trailer for the second season featured Nirvana‘s song “Heart-Shaped Box” off their album In Utero. Viewers took this as another clue to the potential host offspring.

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Westworld title designer, Patrick Clair, told the Huffington Post: “What really affected me most watching Season 1 was the bond between parent and child, and mother and baby, and I think led us to be like, what could we do that has the emotional resonance of the lovers but goes in a new direction of where the story has been, where the story is going?”

Although Clair didn’t confirm the theory for future baby robots, he said viewers will eventually understand the opening sequence as the season continues and will have “real rewards.”

The bond between parent and child has been evident on the show. With this, the potential for robot reproduction would be a logical fit for this season of Westworld, as viewers have watched Maeve Millay (Thandie Newton) set on a search to find her daughter and to escape the park. Also, Dolores was able to finally meet again with her father Peter Abernathy (Louis Herthum) in Episode 3 of this season.

Other theories have suggested that Maeve may have naturally birthed robot baby Charlotte Hale (Tessa Thompson), who is a grown adult on the show. If there’s any truth to this theory, it could explain Maeve’s intense desire to find her daughter.

Viewers will have to tune in on Sundays at 9 p.m. to see if Westworld will have baby robots in its future.