People who played Arena might recognize these places. If you followed the main quest, the second part of the Staff of Chaos could be found in Labyrinthian, but before that you had to look for a tablet showing the way in the Fortress of Ice which was full of marauding knights and ice-wolves.

My main question is, do you think they will make a return, or even take a big part of the main storyline (Dagoth Ur could also be found in Arena)?