The Fourth Isis Victim-to-be: Does He Have Any Chance?

[CherryPanda]

So, a video of the fourth Western hostage, John Cantlie, has been released. He is British, and he is not beheaded yet. Does he have any chance to survive? Is British government any different than US? And what does ISIS want from Great Britain?

Second video of British hostage John Cantlie released

 

[Moonglow]

Money

 

[CherryPanda]

Money

I don't think they actually want money. They have never asked for it - neither in the first video, not in other three.
Well, I understand that they expect certain reaction, but what precisely? What is the final goal?