As the San Diego Comic-Con kicks into high gear, "Sherlock" producers Steven Moffat, Mark Gatiss, and Sue Vertue, along with a video message by Benedict Cumberbatch has revealed more details on season 3.

Regarding Sherlock's mysterious resurrection, Moffat promises a "rational explanation," according to TV Line.

"There really are only a few ways you can fall from a roof and survive. It's not black magic."

In addition, the long speculated wedding episode between John Watson and Sherlock Holmes character Mary Morsten has been confirmed to be the center of episode 2. Morsten will be played by actor Martin Freeman's real-life partner Amanda Abbington.

"Hot off the presses from 110 years ago, John does get married," Moffat jokes. "We hoped that you wouldn't sneak ahead and read the books."

But perhaps the most interesting discussion is on a potential season 4 and the season 3 cliffhanger leading up to it.

"You'll be watching the end of the last episode thinking, 'They wouldn't stop it there?!'" says Moffat according to LA Times.

"'They wouldn't stop it there?! Oh my God, they wouldn't stop it there?!'"

Uh-oh.

The yet unnamed episode 3 of season 3 seems to be another nail-biter, so does this mean fans will see a "Sherlock" resolution with another season?

"Sherlock" producer Sue Vertue confirms that Cumberbatch and Freeman are "optioned for the fourth series. We just haven't figured out when we can do it."

Given both actors' increasingly popular and busy careers will definitely make "Sherlock" tricky to shoot in the future.