is frictional working on a official custom story or expansion pack?

[Googolplex]

...and we are sentenced to 10 years in prison.

Then I hope for you, that you are not sentenced in a prison at Brennenburg castle.
It might could be some scary.

No, you need not to make a free game for us, I think we all are willing to pay some money for your games. I think, that a game from you never could be bad!
I must say, that you are one of two developers in the world, that makes interesting games for me.
The other developer called "PiranhaBytes".

Look at the standard price of new pc games. It lies at ~ $60 and they have not the quality as games from you.

In other words. The price is not a topic, important is the quality of the game.