I'd really like to know if there's a point in leaving feedback concerning the state of the game and it's future now. Is it even being passed on to Larian anymore? I don't even know if they're allowed to add or alter content beyond what was already agreed upon with WOC since they handed over the rights to the characters. As I understand it they wouldn't be able to add or alter real story content or do something like adding the upper city unless they revisited things with WOC. It would be nice to have some clarity on this.
While I’m not commenting in any official capacity - I have no more information about this than any other fan - these are Larian’s official forums so the chances are that feedback here will be seen, particularly if it’s popular, but given what they’ve said about moving on to other stuff it seems unlikely that anything said at this very, very late stage in development will lead to any significant change.
It’s probably best to see these forums more as an opportunity to share your views with other gamers, though potentially modders may be able to address at least some of the remaining areas of dissatisfaction. Or that Larian already have plans for patch 7, though I personally can’t imagine them adding or making big changes to the story at this point.
"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"