With a canon projection lens, a resolution of up to 4096 x 2400 and 5000 lumens of brightness, this looks to be a highly desirable projector. It will be interesting to see what its true dynamic range is.
Now for the bad news: “Canon REALiS 4K500ST has a suggested list price of $73,999.99 and is scheduled to be available through authorized Canon dealers by April 2016.”
It looks like affordable consumer 4K projectors are still several years away.
You can read more about this project in Canon’s brochure.