Well, the Coney Island ending showed something was going on before the events. And the backwards clip shows something might be going on after.
Blockbuster employees just got these shirts... they say Slusho! and have a slushy on the front, and the back says "you can't drink just 6"
We didn't know what it was about, then figured out it has something to do with Cloverfield. Something Japanese and something with how the monster came about. I think it's sort of starting the promotion of the sequel or prequel. It's really mind blowing actually... there's a website for Slusho, i forgot what it was but check it out if you're interested, it's weird. It seems like just riddles and clues.
That'd be funny if it all came back to LOST in the end. And then Tom Cruise shows up.