Something about the size of a Nex 6 with...
A built in EVF with wide DR and which is usable in low light with minimal light leakage.
ISO 50 and 100 at the low end and maybe up to 6400 at the top.
A max shutter speed of 1/8000 sec.
A fully articulated rear screen that can be turned to the body.
A built in pop up flash.
Magnified view for use with manual lenses.
And to go with it... a range of compact and quality fast primes, 20, 30, 50 and 85mm equiv., a few f2.8 macro lenses, 50, 90 and 150mm equiv., a range of compact zooms including a standard f2.8 zoom and a wide and long mid aperture range zooms.
PS. All the lenses are to be non FBW... but still to have full time manual focus adjustment and to have focal length and DoF markings and be manual use friendly.
Point me at it and I'll buy it all.