When comparing E-M5II in high-res mode with D810 it (to my eyes) looks like the E-M5II looks a little better than the D810 in the middle of the picture with less moire and false colours which gives an impression of higher resolution, but worse (lower resolution) in the outer parts of the image. I guess this is lens dependent, the 45/1,8 although a good lens suffers from some corner blurriness which is obvious here. Anyway, it looks impressive. Also I think the shot of the Seattle skyline is impressive, and the problem with edgy lights from moving cars is really a minor issue.
While this is published April 1st and obviously an April joke I think it has some interesting ideas. 6-axis IBIS with the sensor moving back and forth? Remember the Contax AX: it had a movable film plane to get AF, and it worked quite well. In theory at least it would be possible to get AF a similar way with a moving sensor. Imagine AF with all those legacy lenses of OM, FD and other mounts existing out there.
Anyway, I actually own an OM-G, bought in the US 30 years ago, hiding in a cupboard. It exists. It's a very basic entry level slr though.