Because of the strike, Lost's 4th season was cut from the planned 16 episodes to 13, but now it looks like there might be a 14th episode!!
According to TV Guide's Michael Ausiello, this is VERY tentative, but it's a possibility that another episode beyond the 13 planned will be made, which brings up a whole bunch of questions as to how this would change the end of this season.
Check out Ausiello's questions and speculations about this news:
Photo courtesy of cinemablend.com