Since Larian are so giddy about it, it's likely systems-related. Clever systems are more important than world building or storytelling, after all.

A "Divinity mode" that erases the remains of D&D rules from the game and replaces them with fun mechanics, more slapstick and an increased Shove distance. Panel from Hell: "We wanted to give players the best possible D&D game".

I'd put my money on a DM client though. It would be a major feature and doesn't DOS already have that?

I hope it's a "Core Rules Mode" that plays like actual D&D.