For me one of the most important things they need to get right is the City of Baldurs Gate itself. I was hoping to see a lot more of the city in the previews. Exploring the city of Baldurs Gate and the capital city of Athkatla in Baldurs Gate 2 is really what made the game for me. In Divinity Original Sin 2 exploring the city in Act 4, while fun, it felt like once I cleared out a building or section of the city there was rarely any reason to ever return to that section of the city again. The cities felt like home in the Baldurs Gate series, and would need to be returned to again and again through out the games. Its my hope that Baldurs Gate 3 will be set up more like this and less like in Divinity Sin 2 where every building and encounter basically had a set level for going to it and once you cleared it you were generally done with it. Where in Baldurs Gate 1 & 2 the game pretty much revolved around the cities. Its a important aspect to the game that they will need to get right if they want it to feel more like Baldurs Gate and less like Divinity Original Sin 2.