My thoughts on just stuff so far and obviously because I havn't completed the game yet, I have no thoughts on the ending.
I'm not starting a debate and I know that the Diablo games are always being mentioned, so I will just say how I personally feel. In no way, shape or form should Larian ever try to create a game like the Diablo games. Sure, go ahead and improve on character creation and combat because there is nothing wrong with that. Just because Divinity has hack n' slash involved doesn't mean it's got anything to do with Diablo. If you want to try and win some new fans over by improving the combat, so be it.
Personally I feel Diablo 2 is nothing more than a fancy arcade game made for the computer. No disrespect to the game or the people that like because I can't take away what it has already accomplished. But in my eyes it is nothing more than that and replay value is like playing Space Invaders. There are all your enemies coming at you, now kill them for the one hundredth time. It's just too easy to play the game over and over say that they created replay value.
Divinity is a classic and they have created a living and breathing world. Sorry to say but all good things will finally come to an end. I'll take the game with any faults and small imperfections as long as it stays true to itself. I don't want the fighting or story to be like other games. Of course still improve on what you have but don't change to be something different.
I think you have won over alot of fans because of the adventuring feel the game offers also. Should I try to compare this game to King's Quest, that would be pointless. Divinity offers roleplaying, adventuring and action all in one game which creates a fantastic world. My thoughts are to keep all these qualities together which makes Divinity a classic.
The only thoughts I could offer to Larian is not to let people break down what makes the game so strong. Separating each feature and finding their weakness only to improve on them is fine. But by all means, please put it back together the same way. Don't sacrifice any great features of the game to make another one better.
You have a classic game and you have to ask yourself what made it so.