From the multiplayer tab, there's two options, one for adventure and map - I'm guessing there might be more options. I'm assuming there might be an alternative starting position (ie. Maybe not from Baldur's Gate) down the line or they're setting themselves in advance for additional future content - I wouldn't count fully on it. It is called Baldur's Gate and not Waterdeep, Neverwinter etc. . There should definitely be dialogue options for backgrounds similar to race, class and deity - though it would be additional voice work. At least Gith PCs don't get the Baldurian dialogue options
