The identities of The Oceanic 6 have been revealed on page 78. Scroll back, if you want to know.
I think that it's very obvious Sayid is one of them,. I am just very curious how the other two changed their minds.
Remember from last season several people wearing gas masks came to the Island and killed original "Hostiles" (Others)? I think the guy visited Hurley in the institute is related to that previous mission. I wonder why Dan, Frank, Charlotte, and Miles were chosen for the "rescue" mission to the Island? Why did Dan say that the light in the jungle not scattering right?