Returning to the Digital World, Taiki and Shoutmon learn that the Bagra Army has taken it over and reformatted the world to have Seven Kingdoms, each ruled by a general. (Source: AniDB)

Third Break Blade movie.

Nobita finds a fossilized dinosaur egg by accident, and with the help of Doraemon's tools, they hatched the egg and began raising the dinosaur. Knowing that they can't keep the dinosaur forever, Nobita was forced to send it back to prehistoric times where a group of hunters from the future threatens to endanger the dinosaurs. Determined to save the dinosaurs from the claws of the hunters, Doraemon and the gang returns to the past and sets out in a prehistoric adventure. (Source: ANN)

Shiraishi Urara is the top student in her school. One day, due to an accidental kiss, Urara finds herself in the body of the school delinquent, Yamada Ryuu! In trying to switch back to their own bodies, Urara and Ryuu discover that kissing causes them to switch bodies, which leads to their discovery that there are 7 witches in their school. They soon try to uncover the identities of the 7 witches...