David in the Engineer cloak at a temple

I've included these enhanced photos of the dark hallway in this topic because they could be in the temple and the appearance of bodies in the hallway below is more clear.

I wonder why Scott had the pressure suit Engineers in prometheus wear the cloak but then ditched the idea

A trailer for this topic has been uploaded to YouTube. 

Thank you all contributors.

https://www.youtube.com/channel/UCwyNYNcR59pbLUGn4_qhx8Q

Hi Apex_Predator. Ridley Scott may not have ditched the idea.

"I wonder why Scott had the pressure suit Engineers in prometheus wear the cloak but then ditched the idea"

The Engineer elders were in the opening scene but cut to add mystery (one single Engineer left by the waterfall) I assume.

The cloaked Engineers in pressure suits may just have not fit within the concepts Scott had time to show in Prometheus. You could see cloaked Engineers in another scene where it would fit.