So, to go with the most popular theory then, that the Doctor and Rose are in a reality tv programme, and the bad wolf references are idents for the viewers, what can we deduce?
Gallifrey may not have been destroyed, except that as far as the Doctor is concerned, it has. May not be the case if he's part of reality tv though.
Who is in control of the situation - the Face of Boe as was very much mooted last week?
(BTW - I read that the face of Boe is immortal, although strangely enough the rest of his race isn't. Did he buy his immortality, in much the same way Cassandra artificially extended her own life?)
If it is him (Cassandra said in episode two, "talk to the Face") then is he acting alone or as part of a consortium, as Black Guardian speculated last week?
Since the greed/self interest/money theme is fairly strong throughout the series, is money the whole point of the show, or is there a greater prize/goal?
This is all staring to sound very Orwellian now - "He who controls the present controls the past. He who controls the past controls the future."