Could this be the last series for Sherlock?
Sherlock stars Benedict Cumberbatch and Martin Freeman have quickly become some of the hottest actors in Hollywood.
Benedict is set to be the new villain in the highly anticipated Star Trek Into Darkness film and most recently Martin appeared in the first of the Hobbit films from Lord Of The Rings director Peter Jackson.
As their stars ascend even higher, Sherlock co-creator Steven Moffat has admitted he has fears they will become too famous to film the hit show.
Fans of Sherlock were already disappointed when the third series of the BBC1 detective drama was pushed back to autumn because the actors were busy with other projects.
As they are about to embark on filming the latest series next month, Steven admitted to Radio Times: “It’s a problem by accident and design. We do have two of the biggest film stars in the world playing the leads in our show.
“But they seem to like doing it and we hope we can hang on to them for a bit.”
Meanwhile, the show’s other co-creator Mark Gatiss has opened up about what to expect for the future of Sherlock and his reluctant assistant Waston.
While Moriarty was Sherlock Holmes’ biggest adversary throughout the first two series, after his death show bosses have been looking for someone to replace him as the crime detective’s arch nemesis.
But Mark has said that they are not going to revive any other classic Holmes villains from Sir Arthur Conan Doyle’s books, as they’re keen to pit the detective against new characters.
Mark told Radio Times: “Doyle got it right first time, he invented the supervillain.
“All great heroes have their Moriarty and after that you have to be very clever about trying to come up with someone who’s the equivalent otherwise they just look like a watered down version, so it’s about telling different kinds of stories.”
In terms of Sherlock coming back from the dead, Martin Freeman is already anticipating Watson’s reaction when he sees that his best friend managed to survive the death-defying plunge at the end of the last season of the BBC drama.
In the original literary series, the detective’s assistant faints when he sees Sherlock again, but the 41-year-old actor doesn’t think that his character would have such a girly reaction.
He told Radio Times: "I think [Sherlock co-creator] Mark [Gatiss] felt probably that fainting is not very 2013.”
"I don't know what [John's reaction] is going to be, but hopefully something very violent."
His character has a track record of getting physical with his on-screen companion, notably punching him in the face once in episode A Scandal In Belgravia.