ACT2 looks more like a dungeon encounter, the Dark Lands tower, not Baldurs Gate
I think Baldur gate is Act 3 and there will be more then 3 acts.
Dungeon Brothel. As a DM, I would enjoy making that so much.
What is the problem you are solving? Does your proposed change solve the problem? Is your change feasible? What else will be affected by your change? Will your change impact revenue? Does your change align with the goals and strategies of the organizations (Larian, WotC)?