Complex sentence: Prior to announcing a shared cinematic universe between Godzilla and King Kong, Legendary originally intended to produce a trilogy with Gareth Edwards attached to direct all films, however, Edwards left the sequel in May 2016 to work on smaller scale projects.
Split into simpler sentences: Prior to announcing a shared cinematic universe between Godzilla and King Kong, Legendary originally intended to produce a Godzilla trilogy, with Gareth Edwards attached to direct all films. However, Edwards left the sequel in May 2016 to work on smaller scale projects.