There was a newspaper article (NOT on 1 April, I may add)that there is likley to be a sequel, "Ashes to Ashes" being the working title.
I thoroughly enjoyed both series and found it a refreshing change to the usual PC cr*p on TV. The scene showing the "management meeting" near the end really did strike a chord - who wouldn't want to avoid all that appallingly dull and self-important non-speak for a life in a more straight-forward world?
I agree with nrayner - I don't think it was meant to be taken literally. I think the writer was using the old-fashioned device of allegory to suggest that the modern combination of political correctness and "management speak" is stifling the life out of us.
It reminded me of the neurotic rabbits that appear in Richard Adams' "Watership Down" - The ones that prefer to live in a warren supplied with food by a farmer who occasionally culls some of them, rather than take their chances in the real world.
It was great nostalgia trip for old gits like me who actually wore flares, drove a Cortina, went out with 'birds', drank light and bitter and had a silly haircut. On a more serious level, it struck a chord with people fed up with political correctness. Gene Hunt for Prime Minister!