Leaks are unintentionally, accidentally released images, media, and other confidential information. Leaks can occur when a third party accesses otherwise confidential information and releases it to the public, a retailer releases information about an upcoming release that mistakenly has confidential information, or media sites accidentally publicize upcoming episodes from media.
In late 2017, emails were leaked detailing the planned end for Friendship is Magic and the beginning stages of G5 planning. Concepts focused on redesigns of Twilight Sparkle, Rarity, Applejack, Pinkie Pie, Fluttershy, and Rainbow Dash.
Taobao Logo Leak
There is currently speculation as to whether this could be the official logo for Generation 5.
Movie Character Names Leak
On January 12th, 2021, an anonymous user on 4Chan claimed to have worked on the movie and identified the characters featured in the Logo Leak's image. They claimed that the ponies were named Pipp, Zipp, Izzy, Sunny, and Hitch.
On January 13th, 2021, an upload on Slideshare was discovered to feature the Mane 6 from Generation 4. The original uploader for the storyboard, Marylene Sun, has on her LinkedIn that she had worked at Boulder Media on an "Upcoming CGI Movie" from July of 2018 through February of 2019.
The animatic is titled "Opening Scene Song". It has since been removed from Slideshare, but has been uploaded in other places of the internet since.
Character Design Leak
On February 22nd, 2021, JerryFabrics uploaded an image of licensed bedspreads which feature Sunny Starscout, Izzy Moonbow, and Pipp Petals. The text "everypony can make a difference" in a style similar to the leaked logo can be seen on the top of the duvet. The bedsheets have a release date of 9/2021, which matches up with the projected release dates of other merchandise . Two days after this was found, EntertainmentTonight posted the first screenshot of the Movie, showing that the bedspread is indeed real merchandise.