A square sensor would be nice!! i've always loved the format in the hassys, 6x6 produces a very different feel
a square 35mm would be noted...but i'm not sure if there would be a market open to it.
Just one rumour site, and pretty lose statements, not sure if that's smoke or just talk...we'll have to wait. And then someone said something very interesting about the square sensor...that it wouldn't be FF yet...And with all those lenses geared towards aps-c i'm sure someone who hasn't forgotten all his basic geometry can tell us if it can be larger (the square over the rectangle), use those lenses, and how much more it can be.
And the Kz might just be the replacement to the Kr, with lots of colors...andddddd nothing more (maybe some features).
After Dxo sensor performance of the d800 released a couple of hours ago pentax would have to get killer performance for a better price to snatch some FF buyers...the d800 is an impressive beast indeed. Unless they do something feasable and different they are in an uphill position in relation to the FF issue.