thanks for your input! An update of MIR is just around the corner, with it's main new feature being full VI Pro integration, and some minor enhancements. No other main-features have been added, though.
In answer to your suggestions:
ad 1: Right now, the idea is that you will either route MIR's output back to your DAW and do all mastering-related processing there, or to re-record MIR's output and do the final mastering off-line. Your basic needs should be covered by the MIR's Master EQ.
ad 2: That's on my personal wish-list, too. :-)
ad 3 + 4: As a matter of fact, most of your wishes (1-4) will be fulfilled with MIR Pro. That even more true for those two points, although maybe in a different form than one might guess now. :-)
ad 4: I'm not arguing about the benefits of a "conventional" mixer view (hey, I'm a soundguy, too! ;-) ...). Nonetheless I want to emphasize that it was actually one of MIR's basic concepts to get rid of all these purely "technical" representations of virtual orchestral music. I still consider the Instrument / Output Channel View to be a big concession towards the techie guys like me who need sliders, knobs and readouts. 8-)