I'll admit that I struggle to understand what a "more BG" game means except in terms of story quality, breadth, depth, variety and execution; and these we can't judge yet.
In terms of the original BG games, I can think of nothing visual I would want to copy at all; the visual ideas were good for their time, and worked well in the game, but they are long since outclassed. Even the games' creators moved on to create a better engine immediately.
In terms of the gameplay we have seen, there isn't much that really irks, perhaps because I have NOT played D:OS2, so I don't really know what it looks like; these mostly look like pretty generic landscape assets with high fantasy buildings. Sounds about right, doesn't it?
I get the point about over-use of environmental interaction, because I did play some of D:OS, and I can see that some of the UI effects are a bit over-enthusiastic, but the only place in the gameplay that really seemed to cause an issue was when selecting "dash" you had to wait several seconds for the cursor to return control to you; too many actions with a similar selection delay could definitely get annoying.
