So, with the EEs we will have a couple new options in Icewind Dale. Three new classes will be added:
Monks: will need to cover their shaved heads in the icy cold Ten Towns. I just imagine Rasaad with a beanie. Interesting dynamic with the kits too, since both the fire of the Sun Soul monks and the ice of the Dark Moon monks will be useful in a place as cold and wintery as Icewind Dale
Barbarians: will feel right at home in the tundra, with so many clans living near the Ten Towns. Really should have been in the game earlier. Perhaps the most iconic class in the region.
Sorcerers: I believe this will be a popular choice. The spells per day might really revolutionize magic in Icewind Dale, especially when the specialist mages are so restricted with IWD's unique and at time bizarre (what do you mean conjurers can't use magic missile?) spell school choices. Also fire magic might be needed in the harsh cold winters of Icewind Dale.
Also like 20+ kits will be introduced into the game as well (plus some monk and sorcerer kits), but that is for another discussion.
Which one of the three will you guys look forward to the most? I'd also be interested in seeing if any of the kits (Dragon Disciple, Dark Moon Monk and Sun Soul Monk) are more popular than others.