I’m not sure if anyone has posted or analyzed the Season 6 poster yet, and if you have, sorry for being tardy to the party.
If you take a look at the order of the cast members, you’ll find that all of the characters who have been killed are standing more towards the back. This of course assumes that Juliet actually died in the bomb, and possibly that Claire is a walking undead, a la Locke and Nemesis. Taking from this, there are only six cast members that are definitely standing in front of everyone else:
Not sure what this means, but it could indicate who won’t be part of the massive body count expected by the end of the series. Just a thought…