Originally posted by tuco And extreme wide, telephoto and handhold work. Like you said, the 645D is a specialty camera. It's all a trade off. For a general purpose camera, the ability of the the D800/E to cover such a vast area of photographic genras is hard to beat.
Please, many of us say the same thing about the D800, because we shoot APS-c. It is really funny watching FF guys use the same arguments against the 645 we use against the D800. It;s the same arguments, it's just a matter of when you chose to apply them.
But to answer the question, from which people seem to have strayed, I asked the Pentax guys about a new 645D and they said it's on a 5 year cycle. Last release was 2010 so 2015 would be right on schedule.
That's a little disappointing in that the D800 has cut into it's turf so early in it's cycle... but as any FF guy will tell you, those larger pixels and narrower DoF , 1.4 on FF is the same as 2.8 on MF and so on and so on. I'm expecting a full set of equivalency charts with spread sheets available for download etc, with the full wight of the argument in favour of MF. Come on now, fair is fair.