As for the unannounced price...ouch!

From the EIZO website:

Eizo Announces a 4K LCD Monitor

The NAB 2012 expo is coming up and the people at Eizo have already announced that they are bringing a new high definition monitor for photo and video editors that want the best - the FDH3601 4K monitor.

A 4K resolution means that in one monitor you'll have the same pixel count as in four 1080p televisions. It's not just about resolution though, the FDH3601 offers 100% sRGB coverage and utilizes Digital Uniformity Correction to keep the tone smooth across your screen. It can recreate 278 trillion colors thanks to a 16-bit look-up table.The topic of high performance monitors is rather moot. If one wants the best prints or if one wants to match what's on the screen with what comes out of the printer then by all means get the best one you can afford and keep profiling it regularly. But since most people do not have such monitors, i.e. most costumers,have cheap monitors to begin with, then paying big bucks for such a monitor becomes a more difficult choice. But you decide.