The writers of the hit 2009 flick "Star Trek" are pretty stingy about what they can reveal about the much-anticipated sequel, but they can tell us one thing: They're working on it.

"We actually are making significant progress on the story," Alex Kurtzman told MTV News at Comic-Con in San Diego. "I will tell you nothing more. That's something we've never told anyone."

Kurtzman was quick to point out that while he and co-writer Roberto Orci are busy with other projects, they are making sure they get in plenty of time for "Star Trek 2," which star Zachary Quinto said probably wouldn't begin filming until next year.

"Our days are regimented by the hour; it's the only way to get through it," Kurtzman explained. And if they're on the set of another film, he said, "We can step into the trailer and do work on 'Star Trek.' "

The writers said they are developing storylines for "Trek" characters both new and old.

"There were new characters in the first one, so we really want to focus in on them," Orci said. "For example, Scotty (Simon Pegg), who you met at the end of the last movie, who [was] so important to the crew but had the shortest screen time, now is going to be in the movie from the very beginning. In fact, the whole crew is in it from the beginning.

"Now, the whole family is there," he continued, "and you want to focus on them first before you worry too much about new characters, and then make sure you have them taken care of."

And that means their personal favorites may make the cut for the next flick.

"I loved, and a lot of people loved, Captain Pike (Bruce Greenwood)," Orci said. "I loved Bones, who a lot of people thought, '[Karl Urban is] too good-looking to be cast as Bones.' ... He was a fan favorite and ours too."

What do you want to see happen in the sequel? Tell us in the comments!

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