Face it guys, with only 5 eps left, at this pace, especially given the nature of the "answers" we are getting, there's no way all the mysteries we've debated over are going to be explained. Other than the ultimate destiny of the survivors and the island, and what the FST is and how it merges with the OT, I think we're done. Maybe Walt will return. Maybe Desmond's significance will be clarified, maybe not. Libby may return, Annie might. But I'm not holding my breath.