There are multiple locations in the Alien Universe that are out there and still contain the means of Xenomorph creation. Will these sites ever be encountered by humans? How long will they lie dormant?
First there is LV-233 post-Prometheus. Not only is there a crashed Engineer Juggernaut on the surface but multiple still lay beneath the surface. These ships contain massive amounts of the Black Pathogen and the means to weaponise it. There is also the lone Deacon. Some may find their answers in Fire and Stone & Life and Death but I personally don’t consider them canon.
Then there are David’s Neomorph egg sacks and Ovomorphs of Planet 4. When David and the last survivors of the Covenant crew escaped Planet 4 they left behind a planet likely littered with Neomorph egg sacks. There are also multiple Ovomorphs left unopened deep in David’s chambers.
David also has complete control over the USCSS Covenant and it’s two surviving crew members, 2000 colonists and 1140 second-generation embryos. He also has at least two Ovomorph embryos. Destination: Origae 6.
Finally, was the Derelict truly destroyed by the detonation of the Atmosphere processor? Or has Weyland Yutani revisited this site as seen in Aliens: Female War, Aliens: Colonial Marines and Aliens: Infestation?
Are any of these locations related to how Weyland Yutani appears to have so many specimens over the course of Alien: Blackout, Aliens: Defiance, Aliens: Resistance, Aliens: Rescue and Alien: The Cold Forge?