Actually yes, there are contents locked away behind origin characters
and on top of that, there is an origin character that related to the world more than any other origin character and that is Fane
So if anyone want to have the full potential of DoS2(story and lore-wise), he/she should not just choose an origin character, he/she should choose THE origin character
and I hope the history does not repeat itself here
Two things if they have it in this game, i would not bother having origin characters:
1- MY custom character has to have the same depth(if not more) as any origin character(this thing has been address a lot here and Adam Smith talked about it too, so hopefully it will become a reality)
2- Not finding all origin characters from the very beginning (we know Shadowheart and Gale will find them from the very beginning, Wyll and Laz'el maybe 2-3 hours in? and Astorian is the only one we do not know where to find him)
But thankfully, there will be more origin characters in the full release, So hopefully they will spread them out(Like finding some in ACT2 and)