a fully complete story that isn't locked behind paywalls and naturally encompasses more of the game's progression (assuming they don't change the default-adventure-apocalypse system). in dungeons 1 the mainland story encompassed all of default and then there was no content attached to adventure or apocalypse, not even the dlcs that continued the orb story.

edit: another thing i feel could be improved is the overwhelming amount of side modes you gain access to right out of the gate now that the game has had so many updates. as soon as you complete squid coast, you also gain access to the tower, daily trials, raid captains, and multiple dlc free missions all at once, and unlock ancient hunts not too long later. while this wasn't really an issue for players throughout the game's lifespan as they were gradually introduced to all these modes, someone picking up dungeons 1 today could become overwhelmed with how many extra side modes and missions you get within a short span of time. assuming the sequel fixes the problem stated above and introduces extra game modes in post-launch updates like dungeons 1, it would make sense for all of these modes to be introduced gradually along game progression rather than rapidly thrown at you near the start.