In an interview with EW, one of the directors and executive producers for The Mandalorian, Dave Filoni, and showrunner Jon Favreau tease details about the First Order’s origins being involved in the upcoming Star Wars series on Disney+.
“This doesn’t turn into a good guy universe because you blew up two Death Stars,” Filoni said. “You get that the Rebels won and they’re trying to establish a Republic, but there’s no way that could have set in for everybody all at once. You have in a Western where you’re out on the frontier and there might be Washington and they might have some marshals, but sometimes good luck finding one.”
Source: IGN.com Star Wars: Origin of First Order Teased to Be Revealed in The Mandalorian