I know what happens in the series finale!

Or, atleast what I dremt happened:

All the losties are hauled up in a building, when they see Jack, Kate and Sawyer running towards them having escaped the Others.

Locke and his son are having an argument and his son runs out of the building. As he does this Ben and a bunch of others come round the corner with guns.

Ben shoots one of the losties (An extra) and takes Locke's son hostage with a gun to his face. Then he shouts to the losties asking for his sandwiches back, but they refuse. Jack, Kate and Sawyer climb into the building and Jack picks up a gun and points it at Ben.

Then the screen goes black and you hear a gun shot, not knowing who was shot. The episode ends.