Dragon Quest Heroes II will get more content with sub-stories and a competitive mode via DLC.
The magazine scan shows the ultimate spell “Kazapple” which can be performed when the Tension meter fills up for each party member. Once you cast it, the four members will gather to send power into the heavens and using it to strike down the enemy with a powerful lightning attack.
As for the DLC, it is expected to release sometime after the game. It’ll include a sub-story about Dragon Quest IV’s Maya and Meena fighting their old enemy The Marquis de Léon, and another one that has Dragon Quest VI’s Terry and Carver working together with a Hacksaurus.