IMHO, the only advantage of Phantom 4A/Pro if we compare with
M2P, is the global/mechanical shutter. And it is important only with quite limited field of drone usage - a.e. mapping/3D modelling (because the drone travels a bit during the rolling exposition, and the precision suffers). For the wast majority of other usage cases, the benefits of global shutter aren’t that important.
I would like to disagree with stability concerns (
M2 vs P4) - I’we flown with most of the drones DJI produces (because of my work specifics) from Mavic mini to Matrice and 600s series, and, from my experience, there’s no reason at all to say, that P4 is more stable than
M2. Yes, it’s weights more, but it has more lateral aerodynamic drag due the bigger (taller) size of AC (
M2 is much “flatter” shaped).
In order to benefit from bigger size/mass, the P5 should have bigger/heavier/more advanced camera. So, for today, the P4 series is more focused on enterprise usage (P4RTK and P4 Multispectral), and, for non-enterprise end users, there’s very little to hope in Phantom form factor. So, better to see the development of Mavic top range models (Inspire 3 will cover the upper end of photo/video needs).
But, ofc, time will tell us