"I would say rather focus in dept than wide."
Depth? Why let me see depth!
"I would prefer decent improvement of underdeveloped things - inventory, craft, dialogs camera, quality of graphics, animations system, cloth physics, physics of interaction, ability to permanent change enviroment - cut trees, destroy buildings, turn foliage to ashes, poisoned ground so foliage will slowly decay(in days) and crops die; massive AI improvement"
So outside the "Massive AI improvement" no depth.
The thing about Xcom and how it split its actions was that ultimately it was a very tactful game at the end of the day. Every single point you could save was vital in come capacity. So a reduction of that system to a "Move and an action" system, I can see where the negativity comes in.
But in Divinity Original Sin where the AP was all over the place and some classes would run out of actions before they run out of AP.
They are focusing MORE on depth. Simply by making AP consistent and important. As well as you can tell by magic armor they are taking the issues in the first game and trying to smooth them over (such as how having the first turn in DOS was absolutely vital because CCs pretty much won you entire fights).