While the spark is impressive, if they add or fix the following.
It would be even better. If you have any others let them know by adding to this post.

Gesture controls need to work as advertised.
Gimbal speeds needs to be adjustable.
Other fps recording options (25fps, 24fps)
The choice to be able to disable software image stabilization and record the full footage, I would like crappy 4k instead of none.
Disable geo fencing max distance.
Provide rc cable like mavic to directly connect phone.
Increase rc reliability, should have had lightbridge or occusync.
Allow flight plans.

Well if they can't fix range their is always this:

https://youtu.be/3LKCgiGTcTI

Just gonna piggyback here and request for camera RAW photos!

It would be nice, and I don't see why it wouldn't be possible, to unlock the full 12MP camera snaps using gesture controls. A little firmware upgrade should do the trick for that.

RAW RAW RAW RAW RAW RAW RAW RAW RAW RAW RAW
... at least in photo mode .. i can't really understand why is not available
Also, more fps recording options like 25 & 24 would be useful

Gimbal speed is adjustable and to my knowledge there is no geo fencing with regard to range.

...first I don't own the Spark yet (hoping my wife buys me one for Christmas   but from what I can tell, this feature doesn't yet exist.  I would like to see a quick shot mode added where the Spark stays locked in one spot and rotates to follow the subject in active track.  Kind of like a camera man panning the camera on a tripod.   

I don't know if it would be too choppy with the 2 axis gimble or if it would be too difficult to track a subject that is relatively far away and comes toward the camera and then move away again???  but it would be a nice "selfie" feature for fly by shots.

I would like the option for recording to continue after quick shots.   I think it would also be nice to be able to manually set the home point (for example, set the home point to a nice big open area the walk or drive to a nearby area and fly and have the spark return to where you started)... I had a few more early on but I guess I got used to the way things on the spark work so I forgot what I wanted :-)