prepare for unforeseen consequences

Indeed.

Advisors are very dangerous O.=.O This one looks still active

Unfortunately (or fortunately for the visitors) this advisor is already gone. It was active in the past, but now this room is empty and that just imagination, how it could looks like here.
I know the picture tell that the advisor want to coming through this window, but this is not true :D The customer just wanted to show the advisor in the past and the room in the present in one pic.

simply it is something what is left from time when combines leave Earth

Should it be.

Huh? I... can't remeember that this was anywhere in the Game. Or is this just a Fanidea?

Yes, you're right :) This idea all from the customer, the illustration for his fanstory.

Ah, nice! :D