Answers. Well sorta. I know most of you will say that we did not get any answers, but I disagree. We learned about Desmond, what happened to him and why he sees the future. Technically he does not see the future, instead his life is flashing before his eyes, like it did when he turned the key. Now though, it is still going into the future.
When the key turned he went back in time and tried to change things, but found that he could not. He meets a lady who knows what he is trying, and she explains that the universe has a way of righting the course.
It turns out that Charlie is going to die, Desmond has been trying to prevent it, but he cannot help him forever. It will be sad if Charlie dies, he is one of my favorite characters.
Next week, they claim we will get 3 big answers. It seems we learn what happened to the people the Others took.