Scott directed the original Alien film, but then the franchise was passed along to other directors, such as James Cameron and David Finch.
"I'm trying to re-resurrect the beast and let if off the hook for a while because I'm coming back into the back-end of Alien 1. I'm gradually getting to Alien 1." He went on to say, "Prometheus 2 will start getting shot in February and I've already begun now so I know what the script is.Then there will be another one after that and then maybe we'll back into Alien 1, as to why? Who would make such a dreadful thing?"
Prometheus was released in 2012, and its follow up is slated for a 2017 release.