Larian wouldn't raise the level cap if they felt it would unbalance the game or if they couldn't provide sufficient additional content for those extra levels
Dungeons and Kobolds was a great visual; I, very much, want to play Dungeons and DRAGONS
This is 5E D&D revised/edited by Larian to fit into a video game.
When you play EA, and you will, make sure to click the button that allows Larian to gather data from your gameplay.