Spoilers were posted 12/18/16. Was from those who was at the test screenings and saw a rough cut of the film. There are also people "in the know" over at AvPGalaxy. They were the one who broke the news about James Franco and they also claim these leaks are legit. The trailer footage pretty much confirms it all.
HUGE SPOILERS for the entire movie:
- Waterston, Danny McBride and Michael Fassbender are all good in it and that the central characters of the film are good
- However the side-cast is your typical cannon fodder material and the film has some editing/pacing issues
- David is the villain of the film. Aside from the Xenomorphs, he's the main bad guy. He's obsessed with creating the perfect organism.
- He's the sole inhabanet of the planet the crew land on, which is called "Paradise"
- It's the home world of the Engineers but David killed off all of them with the black goo
- You hardly see any Engineers outside of the corpses scattered around the planet
- Shaw is seen only in flashbacks. She's dead before the movie begins and she's the one who sent the beacon to the Covenant ship to help them find the planet
- When David first tells the crew of Covenant what happened to Shaw, he claims she died when the Jockey ship crashed on the planet.
- Later we find out David killed her or exposed her to black goo for testing
- New type of Xeno: The Neomorphs are a new type of Xeno's and they burst out of a guys back and another ones throat
- They run on all fours at first like the dog alien from Alien 3, then stand upright later on. They also have fang teeth and spike things on their back/tail that they can shoot.
- Airbourne black spores infecting the crew is what creates these Neomorphs
- David has a creepy shop of horrors underneath the Engineer citadel set up. Brownish looking room with failed experiments.
- Basically he ****s over the Covenant crew when he finds them so he can use them for Xeno experiments.
- David is also pretty much the one who creates the first facehugger and Xeno that we know and love.
- He's responsible for creating the proto eggs and facehugger because he's been experimenting with the black goo since they arrived on the Planet.
- David is able to lure a character into his egg room and exposes them to a classic facehugger.
- This spawns the Proto-Xenomorph. It's not the classic one we know, but the closest to it. It is more animal in nature.
- David can also communicate with the Neomorphs and he tries to protect them since he's the "father"
- Movie ends in a way that's open to a sequel but has no tie to Alien.