The Force Awakens has been an overwhelming success in every way. It's pretty safe to say Rogue One will be also... or is it? It's the first spin-off, the first with a different tone, and the first without the iconic main characters. What kind of struggles will it face? How will Lucasfilm handle the marketing and merchandising? And perhaps most importantly, how will the mainstream audience deal with a non-Skywalker Star Wars film?