Questions About Lost

With this season of Lost there have been many questions. But a few have hit me in recent weeks....

• On their return to the island why did Sun and Ben crash instead of flashing like the others?
• In 1977, what has become of Daniel Faraday?
• Is 1977 Ben dead? The actor that plays young Ben, Sterling Beaumon, said he is in 2 more episodes, and that the shooting of Ben could end up being the most significant scene in the show's history.
• Will Desmond return to the island?
  

Speaking of Desmond, Is it just me or are the Desmond-centric episodes always the best and most interesting ones?

Feel free to post your thoughts on these and any other questions you may have.