Weird concept, sure, but let's roll with it
This morning, during the Final Fantasy Explorers livestream, Square Enix revealed more about the game's "Trance" feature, which will allow players to transform into characters from past Final Fantasy titles.
The character they used to illustrate this new ability was Cloud from Final Fantasy VII, but it was mentioned that several other characters from past Final Fantasy entries would be in the game as well.
While the time limit of the transformation will be very short, the "Legend Character" transformation will also have background music from their specific games. They'll also have exclusive moves, such as Cloud being able to use his Omnislash Limit Break attack.