And for a closer look at who is on the poster:
The one surprise admission to this poster is Walt, I wonder why he has not been included as he has been an important part of some of the earlier Lost story lines. It is also interesting to note that Locke is the only character who is not facing forwards. I really like this promo and as it is still a while till the new season starts I like that this does not reveal much about the forthcoming season except that we can probably expect to see some familiar faces returning to the show other than the ones that have been confirmed so far.
The date for the final episode has been announced as being May 19th 2010, start to plan those finale parties now.