In fact, William Shatner calls the "Star Trek" outlook "somewhat dire."

When asked if he felt the film series was finished, Shatner replied, "I would say so, yes -- at least for the present.

"I think that Patrick (Stewart) doesn't want to do it anymore," he said. "The other cast of 'Star Trek' . . . they have run their race and have made many films -- good ones, I think -- so there's another phase, but we don't know what it is."

But all is not lost for devoted followers of the Federation.

The series still has its hardcore fan base, especially those at conventions. Trekkers are notoriously loyal to the series and to most anyone associated with the series, Shatner said.

"I find that the conventions are like a built-in audience and I treat them like stand-up comedy and work on new material," he said. "It's great fun and you can't fail because they love you."

And while he wouldn't discuss specifics, Shatner said he has an idea for a new "Star Trek" series.

"In fact, I'm trying to interest the powers -- and that has many levels to it -- for me to conceive another 'Star Trek' manifestation," he said. "It would be a concept for a series."