“It’s not lack of will – it’s a nightmare to schedule,” Gatiss said. “It was very, very hard to schedule the last series, because of Martin and Benedict’s availability. And Steve [Moffat, co-creator]’s and mine.
“There is always that Fawlty Towers principle of, ‘Let’s just leave it,’” he continued.
“We’ve had the keys to Baker Street for a while, but one of the wonderful things is that they’re always shared. They were shared while we were making it.”
Mark’s comments just days after his co-writer, Stephen Moffat, said he “assumed” another series was on the cards.
During an interview on Chris Evans’ BBC Radio 2 breakfast show, he said: “We did [the last series] a year ago, just about, and I’ve been flat-out on Doctor Who ever since.
“So I haven’t really thought about it. Mark [Gatiss] has been doing other stuff as well, so we haven’t sat down and had a proper talk about what we would do with another series.
“I sort of assume we will. I sort of assume we’ll come back.”
Sherlock and John Watson were last seen in ‘The Final Problem’ back in January.
The Many Faces Of Benedict Cumberbatch
Trying To Look Happy Face(01 of37)
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Genuinely Happy Face(02 of37)
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Drunk Face(03 of37)
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WHAT IS THIS Face(04 of37)
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Smaug Face(05 of37)
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Evil Face(06 of37)
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Annoyed Face(07 of37)
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Perturbed Face(08 of37)
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Chagrined Face(09 of37)
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OMG Face(10 of37)
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Nervous Face(11 of37)
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Pissed Off Face(12 of37)
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Afraid Face(13 of37)
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Jolly Face(14 of37)
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Hoity Toity Face(15 of37)
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"This Is Me Teaching You" Face(16 of37)
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In A Good Mood Face(17 of37)
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Embarrassed Face(18 of37)
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Get Outta My Way Face(19 of37)
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Smug Face(20 of37)
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In Da Club Face(21 of37)
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Just Told A Good Joke Face(22 of37)
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First Red Carpet Face(23 of37)
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Stayed Up All Night Face(24 of37)
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Wants To Go To Bed Face(25 of37)
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"If You REALLY Have To Take My Photo" Face(26 of37)