Have read several of the rumor sites. Jar Jar Abrams copied 4 in 7, he's not changing it up that much in 9.
Go watch Return of the Jedi. They brought back the emperor and his throne room. Some massive flleef against the "resistance" or rebels. Just newer faces same story arc.
I will give Johnson some credit in not trying to copy Empire Strikes Back. But he did a hatchet job to the old characters which were loved by the older fans.