Thomas and Twilight Sparkle's Adventures of The Lego Ninjago Movie is is an upcoming Thomas/MLP:FIM/Warner Bros. crossover to be made by Hiatt Grey. And is is the sequel to Thomas and Twilight Sparkle's Adventures of The Lego Batman Movie.
Six teenagers are "hired" by an old master (Jackie Chan) and become ninja heroes at night, defeating monsters and riding awesome vehicles to protect the far-away land of Ninjago and its capital city. Meanwhile, a hungry warlord (Justin Theroux) plots for revenge on his brother, who is the master that trained the ninjas.
- Knockout, Puffer, Dolphy, Rachel, Mighty Joe, Jenny, Daylight, Pete, Kevin, Blythe Baxter, Zoe Trent, Pepper Clark, Penny Ling, Minka Mark, Sunil Nevla, Vinnie Terrio, Russell Ferguson, Gail Trent, Mitzi, Buttercream Sunday, Sugar Sprinkles, July, Team Griffin/Eeveelution, Peter Griffin, Vinny Griffin, Little Bear, Duck, Cat, Owl, Hen, Emily (Little Bear), Lucy, Sunset Shimmer, Dudley Puppy, Kitty Katswell, Judy Hopps, and Nick Wilde guest star in this film.
- Ernie the Giant Chicken, Katty Katswell, Sideshow Bob, R2-Q5, Bobby Briggs, James Woods, and the Dazzlings will work for Lord Garmadon.
- The storyline continues in Thomas and Twilight Sparkle's Adventures of The Lego Movie Sequel.