Update: Nikon is planing to ship this new camera "as early as this fiscal year". The Nikon fiscal year end on March 2011.
I am away from my computer for the next few hours but you can read the whole article at Bloomberg:
"The new concept model will probably have an enhanced function for video recording and may adopt the so-called mirrorless structure. It could be any time this fiscal year or the following year, as new models are starting to sell.”
Those were the words of Nikon's President Makoto Kimura from an interview with Bloomberg.