Denali shaking her head implied that Elvis wasn't good enough to continue maintaining his position as the manager. So, although he had yet to check how things were going on here, he would simply demote Elvis and have Denali bring another person in.
After getting out of here, Jack decided to have Denali take the body strengthening solution. As what he would do next, that was to definitely get to Celine so that he could give her the pill that would help her recover the sealed memories.
As for those that had followed them on a helicopter, they would have to head back to GVSL to continue training.
Jack and Denali got into the car. He then gave her the solution that he was remaining with. He had carried several bottles with him so far but he had taken one and given away the others.
Denali was surprised as to why Jack had given her the solution. Just like him, she had thought that the solution would be ineffective on her.