"Lost": The Return

ABC has released an alternate and extended version of the Lost theatrical trailer which made the rounds last week.
The 1:47-length trailer, viewable at TV Week, includes dialogue and several tantalizing scenes that weren't in that original teaser, including: a confrontation between Jack and the castaways' purported savior, who might not really be there to rescue them after all; a shot of what appears to be Christian Shephard (!) sitting in a chair, possibly seen through a window by Hurley; Hurley jumping into the ocean and expressing his hopes for freedom once they get off of the island (from, I assume, the cursed numbers); Jack and Kate hiding in the rain-soaked jungle; Locke telling everyone that if they want to live, they have to follow him; Sun anxious to have her baby in a hospital; Locke shooting Ben (?); a Dharma brand containing a Hydra; the revelation of a traitor; and a telling scene between Kate and Sawyer in which he says that he's doing what he's always done: surviving.
And that beautiful shot of the helicopter flying over the deep blue ocean? Priceless.

Could history be repeating itself yet again and a new batch of invaders has arrived on the island, hell-bent on destroying the "hostiles" and taking what's theirs? Or is there something else going on here?
I don't know about you but I cannot wait for Season Four of Lost, which kicks off January 31st on ABC, even if there might only be eight episodes this season.
The return can't come quickly enough...