New Lost Season 4 Trailer. Lost is coming back in January to satisfy the needs of strike weary TV viewers (and possibly leave an awkward cliffhanger since only 8 episodes were filmed pre-strike). This trailer is longer than the first preview I saw and gives a good idea of what’s to come. It looks like the show is going to take on the seismic shift alluded to in last year’s finale and this season might actually have a little more plot than past years. (credit: Ain’t It Cool News)