British actor Benedict Cumberbatch dropped hints that the upcoming "Sherlock" Season 4 could be its last. The Oscar-nominated actor, who attended the San Diego Comic Con with co-star Martin Freeman, has been busy booking titular roles when the show went on a long hiatus.
"We'll see how this series lands. It's been great fun to come back and do it. How it will continue in the future, who knows?," Cumberbatch told Collider after he was asked about the future of the show.
"It's not just about what any of us want. It's about what's actually right for the show, to be honest, and that has to be judged very carefully. Think about the very limited but classic British output of certain shows, and there aren't that many of them. It's a painful thing to say, but maybe series four is it. Who knows?," he added.
"Sherlock" co-creators Steven Moffat and Mark Gatiss, who were also present at the comic-con, assured fans that the team is taking it "one season at a time." Moffat commented that he finds it "hard to imagine" not doing the series anymore.
Meanwhile, the much-awaited "Sherlock" Season 4 has already finished its filming, NME reported. The announcement was made by director Benjamin Caron on Instagram.
The new season of the detective series is a long time coming, since the BBC drama aired its third season in 2014. Earlier this year, fans of the franchise were treated to a one-off Christmas special titled "Sherlock: The Abominable Bride," which is set in Victorian London in an alternate timeline.
Similar to the Christmas special, "Sherlock" Season 4 had been described as the darkest the show has gone yet.
"Myopically dark. You're talking about the end of the universe darkness. You can't see in front of you and would walk into everything dark," Cumberbatch said. The actor had his hands full with Marvel's "Doctor Strange" which is set for release on November this year.
Watch the video below for a glimpse of "Sherlock" Season 4: