Nothing was new. Everything was predictable from the beginning (two people coming from the future, one to save someone important and the other to kill the important one; which was the story of every movie in the Terminator series). The plot of the Terminator dark fate was mediocre and only an imitation of its predecessors.
Moreover, ignoring a bunch of the movies created in the Terminator series further hurt the cohesion.
The good part was the exceptional high quality of the special effects used in the movie.