. And Swen and other Larian folks themselves have acknowledged as much by saying, in interviews back in February, that they are concerned about the criticism that this game looks too much like a D:OS game.
As for your BG-IwD comparison, it is apples to oranges. BG and IwD are BOTH D&D games and are BOTH using the exact same setting. For all intents and purposes, one (IwD) is a spinoff of the other. So those two games sharing a common "look" is to be expected and perfectly reasonable. There are absolutely no such connections between D:OS2 and BG3.
Then leave them a little room and some time to prove that they can make something unique, maybe?
As for the BG-Icewind Dale comparo, I was going by a "different studio same look" argument. It worked back then, I dont see why it wouldnt today. Is one medieval fantasy setting really that different from another? Look at BG1: if you looked at the wilderness area and I told you it was the Grewhawk setting, could you have proven me wrong?