To give a general answer to the questions asked here after my last post.
After the Osiris project was culminated in 2010, there has been very little public information about laser projectors. Seems like all R&D have disappeared into the various companies that guard their development against the competition, or only published papers behind Pay-Walls.
Because of this, it is impossible to conclude anything about what sort of gains Laser projectors will have compared to bulb projectors, except what we already know.
I will as always both depend on difference between what imaginer systems that is use (Lcos/DLP) and what type of lasers (Solid State Lasers/Semiconductor Diode lasers).
There are not even any real confirmations of what is holding them back. Is it unsolved Speckle problems, Laser costs or a combination of both?
AVS had several very good articles and videos on the technical presentation of the Kodak DLP laser projectors back in 2010, but most of the links are dead.
For those that haven't seen the videos and want to know more about Laser projectors. This videos gives a good insight in the principle and problems with using Laser for projector light engines.
Here is the link; http://www.youtube.com/user/avscience?feature=watch
Scroll down; There are ten videos in the complete presentation.
Out of the little that have been released of information since 2010, there seems to still be some problems to solve with laser projectors, maybe particularly with smaller HT units that will use semiconductor diode lasers.
Wish there where more openness about the latest developments and problems connected to laser driven HT projectors.