would be nice if we could get in expansion down the line for it or something.
This.
Divinity original Sin is pretty ambitious as it is. On top of that Kickstarter (with schedules, megadungeon, weather and what not) made the scope of the project way more gigantic than initially planned.
Let Larian release D:OS without straddling ti with additional features, which might not add that much to the already meaty game.
Lik3 how DKS was, they can always re-tinker/introduce new races in an expansion. And, as this is a sandboxy non-linear game, re-playability value will be plenty. there is the Editor on top of that