During the Dragon Quest Summer Festival 2019, Square Enix held a special stage show for Dragon Quest XI S. It was revealed at the event that a demo for the Switch RPG will be released.
Data from the demo can be transferred to the full game, and Square Enix will offer a Skill Seed as a bonus. A special Erdrick card can also be obtained for Dragon Quest Rivals on Switch.
A date for the demo will be shared sometime in the future. That should be announced soon, as the game is due out worldwide on September 27.