“Snowpiercer” was a breakout sci-fi comic book film from future Oscar-winner Bong Joon Ho (“Parasite”) and eventually got turned into a prequel series at TNT, it’s now about to debut its third season, and a brand new trailer (see below) has dropped teasing a bit of hope for the show’s characters. They’ve been riding around a desolate frozen planet trying to survive in this brutal post-apocalypse setting on a highly advanced train meant to keep the remaining human population alive.