The genre died for a reason. Simply put, adventure games are too linear.
So, adventure games are too linear but HL2 is not? That's a twisted logic you have there.
I'm pretty sure that Dreamfall will be less linear than HL1, HL2 or Doom3 are, in fact the longest journey was already less linear than any of those shooters and for the most part even more immersive.
Strange thing that the FPS genre has not yet died due to the general linearity found in the last year's shooters, don't you agree?