“The whole point is to explain the Alien franchise and how and why the creation of the aliens. I always thought of the Alien as kind of a piece of bacterial warfare. I always thought that that original ship, which I call the Croissant, was a battleship, holding these biomechanoid creatures that were all about destruction.”
The quotes are translated via The Guardian from German, and when asked if his Prometheus movies will directly tie into Alien, Scott said they would, but not until a third or fourth Prometheus.
“Yes, but it will not be the next one. It will be in the one after this one or maybe even a fourth film before we get back into the Alien franchise.”
Despite the Xeno tease at the end of Prometheus and knowing where this series of films is headed, there will be no Xenomorphs in Prometheus 2. Scott has teased in interviews that they’ve found the “next step” of alien movie monsters instead and that the Engineers were a “good start”; he later added once the script was finished that its third act will reveal a “fresher form of alien.”