i think the new people were hired by the real dharma, and somehow they know ben was the head of the group that killed everyonne else. and they want revenge

now, dharma knew that the plane crashed on their island, which they have done a good job of keeping secret. so maybe they staged the other plane crash?

or it could be some super f'ed up type of thing that none of us can imagine

i wish they would just kill that slimy little prick ben already.