Sven all but confirmed that they are making BG3 for fans of DOS2. Not fans of the original series, not fans of tabletop DnD, but for their fans whom have already purchased their previous games.
He also confirmed they are working on improving combat and other mechanics based on feedback. Since we don't yet know which feedback - let's not take one comment out of the context of the entire interview, let them work and see what happens, hmm?
I would love it if the feedback they are listening too is there too little D&D in a D&D game and they plan to make it closer to 5e RAW but I expect the feedback they will listen too is there too much D&D in BG3 and will cut out that boring D&D stuff to make it more EXCITING!
We'll see, I do think patch 5 is make or break for this project. What we see in it is the vision of what Larian wants BG3 to be.