I've never understood why Sony (and the other Japanese mfr's) still steadfastly refuse to do this. Are they afraid of gutting their small-sensor ENG lines, which are slowly becoming niche cameras?
Arri got it mostly right with the Amira, although it's not affordable for many of us freelancers. Plus it's a little too hefty.
Take the guts from the FX9, put them in an ENG body. Price it fairly. Boom. Sell 'em by the truckload...
Amen, brother.