Theater 2014-15: Ready for something new? Drop in any time this season at Steppenwolf

17th in a series of season previews: The 2014-15 season at Steppenwolf Theatre is for drama buffs with a taste for adventure. Every play on the calendar is new to Chicago. One show is an American first, and also waiting in the wings is a world premiere. Steppenwolf opens with the Chicago unveiling of “The Night Alive” by Conor McPherson, as hot a playwright as you’ll find in the theater world today. If you haven’t seen “The Seafarer,” or if it isn’t at the top of your must-see list, raise your hand. Thought so.