After Jim Moriarty (Andrew Scott) reappeared in the Season 3 finale of BBC's Sherlock in a shocking twist, the show's star is not revealing whether or not the villain will appear again in Season 4.

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Benedict Cumberbatch, who plays the titular Sherlock Holmes in the series, appeared at Comic-Con this weekend where he talked to MTV about the Moriarty twist and said that while he knows what will happen, he is trying to forget before filming on Season 4 begins.

"I casually choose to forget in order to rediscover it again a little bit," Cumberbatch admitted. "I like casually forgetting, not least because there's a lot of other traffic between then and now but also because it's more fun because it's slightly more fresh."

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Regardless, Cumberbatch said that he likes the twist, which featured Moriarty seemingly coming back from the dead after shooting himself in the head in the Season 2 finale.

"It's a very good idea, I do remember that detail," he said. "I'm just trying not to remember it so I don't blurt it out."

Sherlock fans will have to wait awhile to have their questions answered about Moriarty, however. Filming on a one-off special is set to begin in January 2015 in addition to a three-episode fourth season later in the year. This means that all of this content will likely be released in late 2015 and/or early 2016.

"After the briefest of exiles, #Sherlock will return to face one of his biggest mysteries yet... #221back," the BBC One Twitter account teased in early July. This thought continued into the next tweet, which read, "...why is Moriarty's face being broadcast on every television in the land?"

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