It was in the game informer article and I believe in one other place as well, I can't remember. But it was in the GI mag article. So as far as we know, we can choose body types for our characters but everything is up for change or removal from the game. But as far as we are concerned now, it's in.
Also, there has been one game, 'Redguard', in which you had to play as a Redguard (to my understanding).
I know, that's why I said "main". In Battlespire you were also forced to play as a specific type of character instead of choosing class and so on. Battlespire and Redguard were really just spin off games.