Well, number 1 is not technically impossible, but almost so because of the extreme complexity, the lack of frame smoothing, the work required, and unknown effects of new features/old features/features not implimented in glest, version incompatibilities, etc;
Upgrades could do more, but what's the point mentioning so if you won't mention what they could do?
Regarding 4/6, I never was against them, and you're right, they would be optional, and very cool. However, I wonder if people would actually use them. As I said, lots of modeling...
Concerning number 7, I think I misunderstood you, and now I agree very strongly image maps are awkward to use for this, and don't do good for a moving unit.
I think by rotating, he means the ability to rotate a model before building it. I may be wrong though, and if so, then that's another good suggestion.