I'd really like to see more classic monsters like Orcs and goblins reintroduced to the monster encounters. Sorcerers and demons just feel thematically wrong. (Since when was a sorcerer a monster?)

Also treasure cards that serve as power ups as someone else has suggested would be a nice touch. And of course more heroes.

Still not a fan of Terrinoth or the Terrinoth artwork on the character sheets (prefer a more European medieval theme)

I don't think evil wizards are a particularly uncommon antagonist for a high fantasy setting.

Unless you're objecting specifically to the use of the word "sorcerer," which is really just a label. And since "sorcerer" has been applied for the evil wizard antagonist in other Terrinoth products already, it follows logically they would call it the same in DQ.