From Asian movie site MonkeyPeaches.com: "Master Yuen Wo-Ping made the decision of returning to the director’s chair for "Chang Cheng (The Great Wall)" two days ago even though the script would not be available for another three months, according to Beijing-based Star Daily. He … arrived in Beijing yesterday to discuss his idea of the project with PKU Starlight Group, the potential backer. While interviewed by the newspaper, he mentioned he (would) ask Jet Li to be his leading man. Yuen said the story was "approximately set in the Qin Dynasty (221 – 206 B.C.) and / or Han Dynasty (206 B.C. – 220 A.D.)", and it was probably about fighting the nomadic invaders from the north, the Xiongnu, known as the Hun in the west.
Yuen will also choreograph the fights scenes, which would occupy about two third(s) of the movie. Jet Li has announced he would not do any more wushu movie but Yuen said it did not matter because The Great Wall would be an action movie. Being a long-time friend and working partner of Jet Li, Yuen is pretty confident that Li would say yes."
For more info on this project, click here.