This is what I was referring to:
https://dl.djicdn.com/downloads/mavic/DJI_0005.mp4
It starts blurry, then they focus it properly.
To me, this is believable footage of the quality the Mavic camera is capable of. The props dip into the frame but the orientation seem to match the Mavic. Kinda hard to tell from just this example but the clarity seems close to the P4 but just a tad softer. As more confirmed Mavic footage is released, it could very well be the same quality as the P4. If I didn't have anything and I was in the market for a Drone, I'd pick the Mavic over the P4 based on this footage and the portability over the P4.