Complex sentence: On July 23,2016, at San Diego Comic-Con, Disney announced that the California attraction would be replaced by, which is scheduled to open in the summer of 2017 and will utilize the same structure and ride system.
Split into simpler sentences: On July 23,2016 at San Diego Comic-Con, Disney announced that the California attraction would be replaced by. It is scheduled to open in summer 2017 and will utilize the same structure and ride system.