Complex sentence: In September 2015, it was announced that the show's final day of operation would be January 10,2016, and would be closed on January 11, to be replaced by a "Frozen"-inspired musical stage show.
Split into simpler sentences: In September 2015, it was announced that the show's final day of operation would be January 10,2016. The show closed on January 11, to be replaced by a "Frozen"-inspired musical stage show.