The First Omen will explore the birth of The Omen's Damien, and the trailer shows a huge retcon that will improve the franchise. The horror genre continues to ride the wave of reboots, sequels, and prequels, and among the latest additions to these trends is The Omen franchise. After a failed remake of the first movie in 2006, The Omen franchise is now going back to before the events of the 1976 movie with a prequel. Titled The First Omen, the project is directed by Arkasha Stevenson and will explore the origins of Damien, who in the 1976 movie was revealed to be the Antichrist.

https://screenrant.com/the-first-omen-sets-up-a-major-retcon-thatll-improve-the-franchise/