It's not whether it's new or the same thing: it's all about execution. First, I don't think TLJ is anything new. it's basically Empire Strikes back again.. with a few surprises that are not as profound as they try to come off. Whether you stick to a formula or you do something new.. you gotta execute it. As far as how a movie does in terms of business.. that is mainly marketing. The cliffhanger ending of TFa and people wanting to hear Luke talk after 30 years.. while a creatively bankrupt gimmick, assured that TLJ would do well