battles in DA:I

As i watched a video about DA:I from german mag pcgames the commentator noticed that he wasn’t able to zoom out the camera as much as he could in DA:O and i’m curious if that’s because of a technical/performance issue?  Also, it’d be great if we could see more videos and explanations on fights in DA:I, e.g. to see how enemies behave. Will they retreat once their mana/health/abilities are low so would I have to follow them to ‘finish them off’ ? And in that case, is it possible that they secured places with traps? Why is it possible and important to lay down waypoints, do enemies move or do they stand in their set places? Will enemy mages use protection spells I first need to breach and do they cast summon creatures spells behind my party so that I would need that isometric view to actually see new enemies and react? What spells are there – something like confusion, slow, domination, stopping time? Are there creatures in the game that have attacks like gaze that you do not really have protection spells/items against? In the video against a dragon, the dragon has wing attack yet when he does that the wing just goes through the party member without effect?

just as a follow-up i forgot to mention terrain, so these would be the 'issues' i'd like to bring up after seeing the videos so far:

- terrain, is it a 'strategic component' ?, as in i climb on a hill and the enemy doesn't see me (yet if i see an enemy standing on a hill would mean they're at a disadvantage), also do i reach an enemy faster if i jump down as opposed to i run up to him

- waypoints, when should i lay down waypoints, is it meant against enemy mages with little movement?

- Special attacks, can dragons knock around party members like in Baldurs gate 2?