M2Pro has autonomous features that DJI has now eliminated from the consumer line (including the
A2S). Side Sensors and waypoint capabilities are now excluded from the consumer line, but an added value to M2, letting the pilot plot a course and focus on gimbal and yaw, which will not likely to ever appear on the consumer line. IMHO, Accusync 3 adds little to no value to the camera drones, and master shots will go unused in the professional world (but great for weekenders looking to impress). I think DJI did their homework as to where to draw the line between pro/consumer features. Just the fact that we are having this debate suggests that.
Bottom line is that those of us who have already invested in M2 have no incentive to invest in
A2S, we just need to wait to see what the new pro models offer. After all, most of us no longer qualify for refresh programs (2 year max) and would like to push the reset button for new coverage in addition to the new camera features and autonomous features. I expect the new pro line introduction by middle of 3rd quarter (after the dust settles with the consumer line fleet launch and they finalize firmware feature sets for consumer drones based on competition and user feedback).