I just read ice-9 editorial on why VF3 failed in the US, and what they should do with VF4. One of the suggestion was to add a storyline. Well, I think that's not a good idea, because most storylines are cheesy and who cares about them anyway? They could add some CG scenes after you beat Dural, like Jackie driving his F1 car, or Lau cooking, etc. But a storyline, like "you killed my father/brother/sister/master so I'm here to kill you back", nah not for me.