Mine top 3 are :
- display of AGL (Altitude Ground Level) by adding (laser?) sensor
- ability to fly with 2 batteries, one of top of the other
- lateral obstacle sensors

Then
- even more sillent propellers
- camera 1’’

Hmm, your ideas may be good, but some of them may not be suitable for Mavic series.

I got it, Diana.
Btw, The Mavic Pro is already an awesome product, reaching excellence. Congratulions to yours engineers!