The biggest problem is fans. They want to re-experience what they had when they first saw it, then get mad when the movies don't live up to their past experience. I was 7 when Star Wars came out. I had all the toys. I saw the movie a dozen times. It was an experience. As an adult, when I watch to again, I think “wow, this is really not good.” The special effects hold up , but the acting, the dialog, the pacing is all “meh”. When i compare it to the new movies, it’s the same. They are just not good.
And of course Disney wants to recapture the money bonanza that was generated by the original trilogy, but if they do anything that angers the fans, it get boycotted. If they try to stick with the original patterns, it gets called a remake. They are in a lose/lose situation.
Ultimately the fans need to let the nostalgia go and let the current generation build their own favorite movies instead of being told this or that franchise is the best.