Well, they said they were starting the route, then denied it citing a 'hack' of their Facebook page, then this appeared
airblue Studies UK Growth Options :: Routesonline
And on their Facebook page it says
"It clears that Airblue might start thrice weekly Islamabad or Lahore to Birmingham service with A340-300.
It also says that the current Istanbul route would be served now to Islamabad-Istanbul-Luton which is very sure according to our sources."
Make of it, what you wish.