All Divinity 2 needs, in my opinion, is to be different enough to not make everyone feel like they've played this before. I believe it will have no problem doing so though.
And I just want to add that I think people overestimate the value of the word "role" in RPG. It is not specified in role-playing game that the role has to be chosen by the player. When you'll play Call of Duty: Future Warfare 8, you'll be playing as private Joe or something. No matter how limited Joe's role is in that game, you'll still be playing his role, making it a role-playing game. When you play Diablo, you might play the role of a big barbarian that likes to run around and kill monsters. It's not very deep, but it's a role. My point is, the words "role-playing" mean nothing other than you're playing the role of someone other than yourself. But note that I do not dispute the use of RPG as the name for the genre of games that are about character development stat-wise and story-wise.
