IMO content expansions should always start with a new character at level 1. New content in same world. No godlike endgame characters and no replaying old content. But realistically I understand that this wouldn’t fly with the loud masses clamoring for decline.
I couldn't agree more, a chance for a new adventure, even if it only brings a new party from level 1 to 10 is way better than an expansion for high level characters.
Especially if you play it later and didn't keep any save, starting with level 20 characters is just the worst thing possible.
That's the one thing Kingmaker did right, i didn't play any expansion of any RTwP RPG (good party based and TB ones didn't have any as far as i know) except Varathing's hold from PK.
Was even far better than the main game as far as i'm concerned.