Matrix 4 — This is not real. There is no Matrix 4. Every once in a while, someone will find the story about Keanu Reeves announcing two Matrix sequels while he was a keynote speaker at the London school of performing Arts university, based on an erroneous (and completely made up) report from AICN, and the rumor mill will kick into motion again (I saw it as recently as this week on Reddit). There is nothing to this. There are no Matrix sequels in the works, and likely never will be.
District 9 Sequel — According to Neil Blomkamp, he’s still very much interested in exploring the ideas in District 9, but for now, he sees Elysium, his Matt Damon movie out this summer, as a continuation of some of those ideas. There are no concrete plans, only ideas, about making a District 9 sequel, at the moment.
Attack The Block 2 — Director Joe Cornish hasn’t spoken much about a sequel in a little over a year, since he took up directing duties on Snow Crash, but at the time, he was talking about a television spin-off or perhaps an American remake. There has been no movement on either of those projects, however. (In fact, we haven’t really heard much about Snow Crash since last summer).
Beetlejuice 2 — Seth Grahame-Smith is currently working on a script, which he began last March. There have apparently been tentative negotiations with Michael Keaton to return to the role, but no one has been confirmed, and there’s no word on the story.
Bill and Ted’s 3 — Director Dean Parisot is attached, Keanu Reeves is interested (and says the script is “looking good”) and it’s still definitely in development, but as Alex Winter said just two months ago, it’s just going to take some time.
Blade Runner — We don’t know if it’ll be a sequel, a prequel, or a reborquel, but we do know that Ridley Scott is attached to direct, he’s been talking with the original author about ideas, Harrison Ford may make an appearance, the script includes some of the other original characters, and filming may begin next year with an eye toward a 2014 release.
Bridget Jones 3 — While Helen Fielding is working on a third book, as recently as last month, Colin Firth acknowledged that, while there may be a sequel, it will be a long time before any kind of development on it gets underway, if it does at all. Don’t get your hopes up.
The Muppets… Again! — It is most certainly happening. It will be released in March 2014, and while Jason Segel will not be returning, Tom Hiddleston, Ricky Gervais, Christoph Waltz, and Tina Fey — among others — have been cast in the sequel, which will revolve around a European jewelry heist and a Kermit lookalike.
Dawn Of The Planet Of The Apes — The Rise of the Planet of the Apes sequel is set for a May 2014 release date, and is being directed by Matt Reeves. The film, which follows group of scientists in San Francisco struggling to stay alive in the aftermath of a plague that is wiping out humanity, while Caesar tries to maintain dominance over his community of intelligent apes, will star Gary Oldman, Judy Greer, Keri Russell, and Jason Clarke.
Step Brothers 2 — Last we heard (November 2012), Anchorman 2 put Step Brothers 2 on ice, although you can bet your damn ass that if the Anchorman sequel is successful, Step Brothers 2 will move back into production. Adam McKay and Will Ferrell still want to do it.
Jurassic Park 4 — Jurassic Park 4 got itself a director in Colin Trevorrow (Safety Not Guaranteed) and was all set for a June 2014 release, but the studio has put it on hold, while they rework the script, which they didn’t feel was “epic” enough. A release date has been delayed indefinitely.
21 Jump Street 2 — The delay on Jurassic Park actually allowed the sequel to 21 Jump Street to take its June 2014 release date. There have been no details on the plot yet, but Charming Potato and Jonah Hill are set to return, as are directors Chris Miller and Phil Lord.