Lloyd
You are not as far from the future as you expect and I anxiously await everything you suggested. In 1997 I paid $3500 dollars each for a 600 lumen, 200:1 contrast ratio LCD projector. Today, I can buy a 3500 lumen, 15,000:1 contrast ratio DLP projector for $700!
Panasonic has 8000 lumen, 720P projectors with street in the $6K range.
I prognosticate that in the very near future the following things will appear in some form in the projector marketplace
10,000 lumen, 1080P projectors for under $7000
It will have the hooks for a camera based auto calibration system
it will accept something like the new HDbaseT HD over Cat6 to receive the media over long hauls of 300+ feet or more.
Windows embedded on small form factor PCB's will have such blazing fast performance that they might be able to fit in to the input slot of most installation grade projectors. Watchout may actually run on this so the display machine might actually reside INSIDE the projector! Ok, thats ambitious but I can dream...
The light source in the projector might involve RGB laser diodes delivered over fiber from remote source racks.
All the color in all the projectors will match because of the shared massive parrallel blending of the laser arrays. And the gamut will be off the charts.
It's going to be fun !
Keep on dreaming