The thing that has confused me most this season is the sunken Island in the Flash Sideways. I have always believed that the Flash Sideways world is what exists after the end of this season, but wasn’t entirely sure how this would come about. After the last few episodes we can state certain things about the Island in the Flash Sideways world. It was still above sea-level around about 1973, which is when Ben first came to the Island – he talks about the Dharma initiative to his father Roger in the Flash Sideways world. However,Â Alex Rousseau is alive and well in the Sideways world, which rather suggests her mother Danielle never made it to the Island – which was around 1988 before. So we can surmise that the Island sank between 1973 and 1988. It seems obvious to me that the Losties might try to sink the Island to contain MIB. But why and how would they would they get it to sink between 1973 and 1988. The most obvious ‘how’ is the Frozen Donkey Wheel. Move the Island back in time before sinking it. ‘Why’ might be due to a wish to reverse/prevent some of the things that have happened on the Island.
I would guess that some very bad stuff is going to happen in the near future. Possibly a lot of people are going to die. I can’t shake the feeling that come the final episode, we might be down to a final few. Moving the Island into the past and sinking it would prevent flight 815 from crashing and possibly save the Losties who might have died leading up to this point. If I had to guess, I would say that Jack and Hurley will be the last men standing. Jack is now the ‘man of faith’ who is willing to make the sacrifice and sink the Island. This would obviously lead to his death. Hurley, due to his connection with Jacob, will find the Frozen Donkey Wheel, turn it, send the Island back to whenever, and be transported to the Tunisian desert and saved.