Deadpool came out in 2016 and did gangbusters at the box office earning $783 million off a budget of $58 million. Netflix executives saw this and said, "I want that!" When an intern told them that Marvel already owned it, they asked for the next best thing. When they were informed that DC owns Deathstroke, they asked, "Is there anything left?"
Enter Robert "The Rob" Liefeld and the Extreme universe. Created by The Rob in 1992, Extreme Studios was his own segment of Image Comics, publishing titles including Brigade, Bloodstrike, Cybrid, Re-Gex, Bloodwulf, and Kaboom. All of which now have their film rights owned by Netflix thanks to a seven figure deal.
Akiva Goldsman will oversee the writers room for the series of Extreme films, making sure they're all interconnected. Goldsman set up the writers room for the Transformers spinoffs so these movies are clearly in good hands.