The 100 spoilers follow.
While fans of The 100 were mourning the end of the post-apocalyptic sci-fi series when it wrapped up in the US after seven seasons (it doesn't yet have a UK premiere date), it wasn't strictly goodbye.
It was announced last year that a spinoff was in the works, and viewers were given a taste of what to expect during episode eight, 'Anaconda', which hit screens in July.
It was a backdoor pilot for the prequel series, which takes place 97 years before the events of The 100 kick off, beginning with the nuclear apocalypse that wipes out humanity.
Iola Evans (Carnival Row) Adain Bradley (Riverdale) and Leo Howard (Why Women Kill) were the first names attached to the project.
In 'Anaconda', we were introduced to Callie Cadogan (Evans) and given answers about her eventual death, as well as further insight into her father/Second Dawn leader Bill (John Pyper-Ferguson) and the cult itself.
The origins of the Grounders were made known, as well as explaining why that bunker in season four was found empty.
Essentially, it was one big explainer, as well as a set up for the next stage of the story.
At the end of the episode, Callie left the shelter with the Nightblood serum and the ALIE 2 mind drive after leading an uprising against her dad, which later resulted in her death.
The first Flamekeeper, along with a group of survivors, then left in search of others who had somehow avoided death.
Chatting to Entertainment Weekly [EW], showrunner Jason Rothenberg said that the new series, while "different from the original", would "fill in a lot of blanks for fans".
He added: "We know that we are talking about the origins of the Grounders and...we would see the fracturing of that group into various clans eventually.
"We would see the growing importance of the Flame. We would see the way the Flame operates before...it came into our story...when it's not working perfectly anymore."
Rothenberg also discussed his plans to "go to a mind space and to see Becca when the next person receives the Flame", as well as taking the characters into space.
"We know that Becca comes down on Unity Day as they were bringing the Ark together, and so up there we've got the Ark generation 1 with the ancestors," he continued.
Rothenberg also told fans to expect plenty of flashbacks, exploring what characters were like before the apocalypse took place and "how they've changed", plus plenty of Easter eggs.
"We'll meet characters with those same last names that are the ancestors of our heroes in the original show," he said. "I don't want to say when, because I just spoiled something potentially huge to you of the show. But I think it's so cool."
Back in May this year, CW boss Mark Pedowitz said the series was "very much alive" at a press conference (via TVLine). But despite his comments, it hadn't been ordered to series.
Hop forward to October and it doesn't sound like much has changed.
Rothenberg told TVLine that The 100: Second Dawn, as it's being referred to, remains "up in the air".
"The conversations are now happening at such a high level, they don’t include me," he said.
"I hope to get a call one of these days and get some good news about it. I'd love to be able to continue those adventures. I love those actors and I love the world of the show so much."
In a separate interview with CBR, Rothenberg attempted to extinguish any doubt by focusing on the positives.
"If there's any good news, it's just that they're still talking about it," he said. "To me, that's good news. We have a pulse."
The 100 airs on The CW in the US and E4 in the UK.
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