...there is now a mod to get rid of the Hinterlands except for any quests therein. And DA:TV is explicitly not open world.
Holy Moses, you just made my day. I've been wanting to play through again, but thoughts of the Hinterlands kept killing the dream.
Honestly, I wouldn't be upset if DAV was as closed in as DA2, but they'd be in a heap of trouble with most folks if they did that.