Here's my two cents on what I'd like.
A professional compact Full 2K camera,(4 would be great but I don't see this happening) this positions it below the Red and still above the HVX and other proconsumer models. This would make it the darling of the no-budget indi market, with budgets of anything from 10-100K. I think at the moment the Red is probably aimed more at the 150K and upward budget range.
The same or at least similar lattitude and Range as the Red. 2 stops or more than the HVX and were laughing !
About the size of the HVX, maybe smaller, with the ability to add shoulder and rail support like the Red.
XLR imputs similar to the Red or HVX, why not up the quality to say 24/96 and market it as the truly independant or Indi soloution.
2 stage ND would be handy for run and gun as would some focus assist and Zebras like the HVX.
The same modular features as the Red and designed accordingly to fit the size and weight.
Include the same connections and ports as the red or modify where appropriate.
If you can provide this for under 10K then I'll sell my HVX and you can put me on the waiting list.