After reading the blog post it's looking like Larian's next two games will be in the same 'style' of D:OS one being a Divinity universe game and the other something completley new based on a new IP. Although I enjoyed D:OS I'm not a fan of turn based games and would like to see a sequel to Divinity 2 in 3rd person but my gut feeling is this won't happen. If I were to take a guess the next Divinity game will continue the Divine's story and be an isometric, turn based game.
There was a reply by Lar which implied that they would rather please the 93% who enjoyed D:OS rather than the 7% who want a game like Divinity 2. It would make sense for them as the next game would likley to be more successful in terms of sales.