I would like to see 4K movie at 120fps in 3D with full 10 bit colorspace, i think you will see it faster then you think.
if you check out best buy you will see almost no non HD TVs for sale. you will see very few non flat screens, and you will see the new 50-57 inch LCDs selling as fast as they come in.
margins on the largest size screens are very good, but the cheap ones made in china are getting bigger and better every year. the top tier LCD makers have to keep making bigger sets to sell for the 2000-3000 price that they make money on. at some point they will run out of size, there is only so big you can go. after that they have to add something that will set them apart from the chinese sets. the only option they have is to go higher contrast ratio, higher frame rate, more color space and last higher resolution.
sets are already announced that do 50k to one contrast and some may do 120fps. color space was upped for HDMI 1.3 set could start showing up to use it. projectors that have 4K res are already planed and LCD flat panel makers will be showing them for 2009 or 2010 time frame.
this is why i think we will see the holographic disks at some point, around 2010 they should start showing them with a roll out in 2012. they may show up faster if the current HD disks fail or the CP is truly broken.
i do 3D computer art, i have a Dell 3007WFP that is 30 inch LCD with 2560x1600 with a custom polarization screen it is fully stereoptic. so i can do 720p HD stereo now. 3D lcd will evolve from the two view LCDs being shown now, these are the ones that let two people watch diff shows from the left and right.
this is the progression that i think LCDs will take