They actually did come out and say it'll be similar to D:OS in that each act will be a zone, and you won't be backtracking. I assume this also means we won't be frequently entering and leaving the city of Baldurs Gate, but it'll be confined to a single act.
Imagine calling your game Baldur's Gate, but confining the city to only one act.
This is really lame and not how it was done in the Baldur's Gate series. Not to mention that the ability to backtrack, with only minor exceptions, should be available in every RPG.
Just imagine calling your game "Baldur´s Gate 2" and do not come not even nowhere near the city in the entire game...
I think that´s already been done in the BG series =)
