Alongside that, she wrote: "Well. I guess the cat's out of the (little brown) bag. As usual, we will keep you posted on every detail as we are able. I'm under strict gag order until then. Xx, Sj." The mysterious post follows months of speculation that Parker and her co-stars Kristin Davis, Kim Cattrall and Cynthia Nixon, were set to return for a third instalment. Back in October 2014, both Parker and Davis hinted they could be reprising their roles when they exchanged a series of tweets seeming to be in reference to the movie.