Complex sentence: At the July 6,2012 event celebrating the 20th anniversary of "Sailor Moon", Takeuchi, Kodansha and idol group Momoiro Clover Z announced that a new anime adaptation was in production and is scheduled to begin broadcasting in Summer 2013 for a simultaneous worldwide release.
Split into simpler sentences: At the July 6,2012 event celebrating the 20th anniversary of "Sailor Moon", Takeuchi, Kodansha and idol group Momoiro Clover Z announced that a new "Sailor Moon" anime is in production. It is scheduled to begin broadcasting in Summer 2013 for a simultaneous worldwide release.