Derpy speaks for the first time in the Equestria Girls movies.
A cameo was rumored for Starlight Glimmer, but she does not appear in the finished product.
The 4th and final installment in the Equestria Girls movie franchise.
Discord was considered to be in this movie, but he was scrapped.
There was originally meant to be a fifth Equestria Girls movie that would continue right after the events of Legend of Everfree, but Hasbro decided to scrap it to make way for the following specials and web-series, making Legend of Everfree the franchise's final feature-length installment.