Yup, the LOST Cast and crew are setting up shop at Honolulu Airport to film some airport scenes and so it does seem like we will get the potential reset or Alternate Timeline story of the Losties arriving LAX!!
As you can see at least Naveen Andrews, Josh Holloway and Evangeline Lilly if not more will be on set. But the first hardworking actor sighted was none other than Daniel Roebuck, who played the hapless (and previously detonated) Dr. Leslie Arzt.
Update: One of the guys at the airport set has told us that this is NOT a Flashback or dream sequence.
Looks like things pick up immediately after Juliet hits the bomb because the construction site looks like the Swan after it got sucked in. Jack, Kate, Sawyer, Miles, Jin were there. Saw Sawyer upset over Juliet's actions and runs toward the hole which is now stuffed with all the metal from the site. Also saw them and some stunt doubles climb out of the hole using vines/rope.
Didn't see them filming, but saw Hurley and Sayid around set. Sayid's Dharma uniform was covered in a lot of blood so it looks like he's still hurt from last season.
This really isn't MAJOR to me. I think the majority of us already knew we'd see them at LAX. What, with all the dead people coming back and the first episode being titled LA X and all. Obviously this isn't a real reset. It's some kind of fake-out or alternate timeline...especially since we now know they're picking up right where they left off with Juliet and the gang by the Swan.