The NFL season is here and the league has made its season kickoff a weekend-long event, with a season opener hosted by the Super Bowl-winning Philadelphia Eagles against the Dallas Cowboys Thursday night followed by three more primetime matchups on Friday, Sunday and Monday. What’s not a maybe: Football is back, and with it the storylines and drama of a new season about to unfold. Read on for three big questions looming over the start of the year. Does the trade heard round the world make the Green Bay Packers Super Bowl favorites? “It’s different — a whole new playbook, different terminology, different reads, different footwork, different things like that,” he told reporters in July.