Old idea brought up a long time by me and Cognosente:
Door objects that detect the player's position and open automatically upon them entering a certain range. Ideally with small added animations, calm opening for non combat and kick down for combat.
Why bring it back up? Because it seems clicking doors is actually one of the bigger complaints from reviews/player feedback/trialist feedback. This idea would eliminate that frustration and tedium.
I for one think it'd be worth some attention in the future.
/discuss
