Well, Shannon already died in season 2, wouldn't this fulfill a major character being killed/dieing? I just say this because i don't want it to be Hurley.

If you rewatch the trailer for this week carefully, it really does look like some editing happened between the scene where Hurley's leg is near the edge of the cliff and when he screams whatever he screams. I think the two happenings are completely seperate. Again, i might just be saying this because i dont' want it to be true that Hurley will die, but i'm almost positive he won't...at least not in this episode!