From Dark Horizons:
There’s been stirrings but now it’s official – a fourth “The Matrix” film is on the way from Warner Bros. Pictures and Village Roadshow Pictures.
In even better news, three key talents – stars Keanu Reeves and Carrie-Anne Moss and co-writer/co-director Lana Wachowski – are all returning. Reeves and Moss are reprising their roles as Neo and Trinity respectively while Lana will be directing this fourth film solo this time out along with co-writing the script with Aleksander Hemon and David Mitchell.