DJI Spark was launched several days ago. It ticks all the features that i wanted in a drone, easy to maneuver, easy to fly and compact in size. It also got mechanical stabilizer ( only 2 -axis stabilizer but it is ok to me). no 4k footage is not a big deal to me either. But the only thing that not in my favour is that it doesnt support RAW. for me RAW is the best option when it come to post processing. If it shot in jpeg, it is not easy to increase the bright of the shdow since it will introduce noise.
One option of processing using jpeg is that by taking multiple shot with different exposure (bracketing). The Spark offers the auto bracketing of 0.7 EV