In the trailer, Maleficent's magic is green, which in the previous movie, was only the case if she was evil. While it could be editing to throw the audience off, it could indicate Maleficent has turned down a dark path.
On March 6, 2019, Disney released the first teaser poster featuring Maleficent, along with a new release date for the film set for Friday, October 18, 2019. The film was originally scheduled to open seven months later on May 29, 2020.
Due to being released on the same day as Fox Searchlight Pictures' Jojo Rabbit, this marks the last time Disney theatrically releases both films on the same day. It is also the last time both a Disney film and a Fox film in general are theatrically released on the same day, due to conflicting schedule changes by Disney (which acquired 21st Century Fox, including 20th Century Fox and Fox Searchlight Pictures, back on March 20, 2019) and the fact that Disney will continue to release Disney films and Fox films on separate days from November 2019 onwards.
This is the second sequel to a Disney live-action adaptation of an animated film not to have its music score composed by the same composer as its predecessor (James Newton Howard scored the previous film while Geoff Zanelli took over for this film) after 102 Dalmatians (2000) (which was scored by David Newman).