I think we definitely should be able to change companions class AND race as well. From playing EA hundreds of hours I think for example Astarion would be better as half orc barbarian vampire. It would fit the story better. I see Shadowheart as Dragonborn warlock and Gale as halfling wizard.
Gale stealing magic prohibited items thinking he's doing something cool only to impress a girl is totally an halfing thing now that you make me notice it!
