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However, she warned fans that they would have to be patient because the project is at a "really early" stage.
"I do believe it will happen because [creator] Michael Patrick King himself told me it's gonna happen," she told MTV. "But I haven't received any official information yet.
"King has to write a new script. It's a long process. I don't think it will happen in 2009. But you never know. Maybe the end [of the year]. That's unofficial. I have really no idea. I don't think there's a set date anyway. It's in the really early process."
Kim Cattrall fuelled rumours of a sequel in November when she told The Paul O'Grady Show that it is happening. However, co-stars Cynthia Nixon and Sarah Jessica Parker have both warned that a follow-up is not a done deal.
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