I really don't like the non-answer they gave for the cut Upper City content:

It was always our intention for the Upper City to be an epic, cinematic epilogue bringing the story of Baldur’s Gate 3 to a close. But we didn’t talk about that in advance because it would have been a major spoiler.

What, exactly, is that supposed to mean? Can we expect them to finish that area and add it to the game? If not, then what happened?