Howling:Doctor who Game Concepts?!...

http://www.bbc.co.uk/doctorwho/dw/news/bulletin_100408_02/Adventure_Games_Concept_Art <--- On there are concepts for this game that will accompany the new series. Im wondering on one of the concepts it says "a Creepily familiar alien skyline.@ Its picture 4. Now I've only been watching Dr Who since the 2005 reboot thing and now i dont remember the ninth doctor's days cuz they were so short. And I was wondering what skyline are they talking about if its supposed to be familiar?! And on the other pictures of the concept, theres one with the corridors, and on the walls are "GSO" so do you think that this "GSO" is important in the whole series or something? and what do you think of the upcoming game thing and it's concepts.