Remove the range restriction on waypoints, add camera tilt angle, start/stop recording, take photo during waypoint mission.
Increased number of smart flight modes, similar to those included in DJI GO 4.
Foldable controller with built in display, like Karma but better designed. I think they are working on one already.
Sport mode like on the Phantom 4/Mavic.
Up to 2 mile range in a city.
Better camera for low-light, also with narrower field of view to reduce barrel distortion.
Better flight time, over 20 minutes. I typically get around 18.
360 degree camera with retracting legs, probably already in development.
Lighter body, not made of brittle plastic to allow faster acceleration, also better battery life and increased durability (already pretty durable).
That is all I could think of that weren't already posted.