The studio’s writers have also changed 150,000 words to make story arcs tighter, the developer said. Writer Kevin Vanord said that the Definitive Edition will “tie up loose ends” better than the original, and that a lot of the new dialogue will help better explain the motivation of various characters.
Source: N4G PC Divinity: Original Sin 2 Definitive Edition's end game revamp adds 130,000 words