Complex sentence: On September 14,2015, it was reported that a new "Mary Poppins" film was in development by Disney, and would take place 20 years after the first, featuring a standalone narrative based on the remaining seven books in the series.
Split into simpler sentences: On September 14,2015, it was reported a new "Mary Poppins" film was in development by Disney. The film will take place 20 years after the first, featuring a standalone narrative based on the remaining seven books in the series.