-Bloo-,
Xenomorph,
11 years ago
^Exactly. Besides, there's plenty of evidence from the last 30 seconds of Prometheus alone that debunks this:
- The Deacon is born complete with appropriately sized limbs while a Chestburster, while sometimes born with tiny arms, is not (it's implied that the only reason the Dogalien was born the way it was is because it couldn't escape the dog/ox for some reason).
- While it wasn't pointed out by name (no one actually says "Chestburster" in the films), it was specifically stated that it was the tiny Chestburster that came out of the Space Jockey in the first movie, not a full-bodied Deacon. There was a tiny fracture in the chest/ribs. Had it been a Deacon, the Jockey's body would have been split in half and on the floor.
Not that you're wrong about it being an Engineer-born Xeno, but it that's exactly it - a Xenomorph. Which you yourself have said is different from a Deacon. Honestly, it'd be cool if it was a Jockeyalien. That theory is just as credible as my theory about it being a premature Praetorian.
If someone like Ridley Scott or anyone on the ACM development team confirms that this IS in fact an adult Deacon, then hey, that's awesome. But in the mean time, you should link us to those reliable websites.