Sam's not rejoining... really. But I have an idea for Sam to know the team is in trouble (due to the HQ going down) and reach out to help them. What Sam "told" Phill in my post is that he is willing to put money up for the team to set up shop on one of the smaller unpopulated islands around the "mainland." They can set up a working HQ (living away from the building), that will not be harmful to the population and they can reinforce the place better.
Just an idea, the team doesn't have to accept it or anything (I wanted to clear up some of the Sam stuff - How did I do?).
Have you ever looked into a mirror and wondered if behind it was another world, the same... but totally different? - Reflection (2002) UTOPIAN PRODUCTIONS
