I think the whole Moonrise Towers is the conclusion of Act 1. We are only getting 80 -90% of the act.

Originally Posted by Abits
I doubt act 2 will take place anywhere other than Baldur's Gate


I agree, opening Act 2 in Baldur's Gate seems logical as it would be a big story hub. I also suspect Act 2 will be the longest act and contain a lot of optional side quest content.