The actress – who plays Carrie Bradshaw in the franchise – shared a picture of herself strutting down a New York street carrying a bag from Bloomingdales while a group of fans watched from a cordoned off area.
Her caption read: "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."
Although she didn't actual reference SATC, fans were quick to add everything together: New York + a very Carrie outfit + shopping bag + fans + secrecy… does it equal a new movie?!
Sex and the City ran on our TV screens for six glorious series, wrapping up with Carrie finally getting her man in Mr Big. Or John, as he was actually called. Next came two spinoff movies – although the second was largely panned by critics. Even then, we wouldn't say no to a third!
So, as a recap – what were the gang up to last time we saw them?
Carrie and Big were living together in fabulous apartment in New York – after Big forgave her kissing ex-boyfriend Aiden in Abu Dhabi when she bumped into him in a marketplace. (As you do.)
Miranda and Steve were happy together in Brooklyn with little Brady, Charlotte and Harry were happy with their daughters (after Char learned her hot nanny was no threat to her marriage), and Samantha was as sex loving as always.
We know, we know, the second movie wasn't great but, still, we would rather love to see our four favourite glamorous New Yorkers back on screens together just one more time!