There was an ending that was going to be filmed where all the survivors get shot, I would think either this would happen after what we saw, or they would be taken in for questioning, and told they cannot disscuss anything they saw.
I personally liked Miss Yutuni, she looked great for the part, and how she was a little covered by shadows, so we diddnt totally see her in full view. I would assume that she would buy out Weyland Industries, and use their resorces to form an allience with the Government and create the Weyland Yutuni Empire.