LV-223 after the Juggernaut leaves..

As I recall from the closing of Prometheus there were several humans not accounted for. *Weyland .dead *Ford knocked around but I didn't think it was kill blow from the Engineer *Bodyguards/Medical staff THere were several Weyland employuess in the Orrey when the Last Engineer and the crew met. Some were seemingly killwed,,but I could not account for all crew members being destroyed. It seems to me in the time that the Last Engineered hed to fired up the Juggernaut to begin the destruction of Earth there may have been time for some of the humans , to come to their senses and crawl..walk or run back into the pryamid and safety. No way they could survive the launch of the alein ship..but just as Shaw found an unknown outlet to the moon's surface others might have also made it to safety. I mention all of this because if any crew members did survive they would be a new host for our expanding goo and possibly more xenos. David and Shaw didn't mention any destruction of structures on LV-223 before they left(to me this is a plaot line not fully explained.) or even going back into the pyramids to check for surviviours.