"Sometimes you just got to go forward," said executive producer Jeff Judah. "We wanted Rob, so that was the the choice. I think you just have to sort of forget about that and move on."

TORI SPELLING is coming back to "90210." (She'll be the owner of an "upscale boutique.") Brian Austin Green's character is not. (At least not as far as anyone knows.)

And yet, in the original series' finale, her character (Donna) married his (David Silver). So, what happened to their marriage?

"You'll find out," said executive producer Jeff Judah. "I'm not trying to be coy. I just don't want to give something away, but if you watch the first night, I would imagine you will find some information out."

"You will know what they have been doing and where they're at now," promised Judah.

And apparently it's not a coincidence that one of the characters is (first) named Silver, a teenage girl who's described as "a rebel who produces and stars in a YouTube-type video series." (David Silver, of course, was sort of the West Beverly High deejay.)

"You know what? We'll have to see," said Sachs.

THERE ARE NO PLANS to bring back any of the other original cast members, but the producers aren't ruling it out.

"If there was something appropriate that organically fit in with our stories now, we'd be open to it," said Sachs (who uses the Hollywood term "organically" a lot.) "But we haven't spoken to them yet."

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E-mail: pierce@desnews.com