This is a compilation of upgrades that I gleaned from my last post.

Sensers all around, bubble protection
Longer battery life
Water proof and floats
Pontoons as an accessory (For landing on water)
Higher and lower allowable operating temperatures
Improved camera, optical zoom ,ability to take stills while videoing
Ability to see wider, higher and lower with the camera
More compact
Faster sport mode
Ability to hover in tripod in silent mode
Microphone for use in silent mode
3rd party goggles connectivity and better goggles than the competition at half the price

Audible Alarm if connection and drone lost.  
And customers that don't post complaints about shipping in every discusion ever posted.

Yes to the waterproof/floating/pontoon.  We are on boats a lot and would love these features!