John Singleton (Shaft, 2 Fast 2 Furious) is indeed in talks to direct and develop a Luke Cage movie for Marvel and Columbia Pictures, according to Variety.
The trade described the film as: “Cage is about a former gang member who is framed for a crime he didn't commit. In prison, he volunteers for a medical experiment that goes awry, giving him superstrength and bulletproof skin. Using his newfound powers, Luke Cage escapes and becomes a hero for hire. Ben Ramsey wrote the script,” Variety said.
“The comic book, initially titled ‘Luke Cage, Hero for Hire,’ debuted in the 1970s and ran until the mid-1980s, with Cage becoming Marvel's first urban hero. Cage, who picked up the moniker Power Man, eventually teamed with a character called Iron Fist, a martial artist.”