This is huge, BG is a city made up of 3 big subcities, the Upper City made up of 4 wards, Lower City made up of 6 wards, and the newer outer city made up of nine wards. Plus it has an Undercity, a Brothel/Megadungeon. Its the biggest city in the Forgotten Realms.
And this is just ACT 2, the biggest Act, we don't even know where Act 3 occurs, some speculate Candlekeep, others Hell, I hope they surprise us with something cool.
I wonder about that theory that Baldur's Gate is act 2 and then we'll move on. Was that actually something confirmed by Larian? All the dev commentary in the latest trailer seems to be talking about ending up in Baldur's Gate and seeing there the culmination of all our choices on the way, so I'm now thinking that the final act will be there, though I'd be surprised if we didn't also get new quests that sent us venturing out from that hub. Personally, I like the idea of the city being what we're working up to for symmetry with BG1. I guess it still could be the case that we get a big act 2 based in the city and then a smaller act 3 end game elsewhere, but to me it's sounding as though even if we get to the city in act 2 it'll continue as our base from that point on even if we do get out to visit places like Candlekeep and/or hell!
I'm sure someone in the trailer also mentioned specifically the lower city as the location of our adventures. I find it hard to believe that we'll only get to see that one part of the city, but that did make it sound as though the lower city would be the main focus of our questing and exploration. As you say, though, that's pretty big just by itself!
