“Sony’s 1.13x crop 18.7 Megapixels”
PentaxLife (weird place to post this…) is reporting:

The rumors about upcoming Nikon D3 with a Sony’s 1.13x crop 18.7 Megapixels sensor are spreading over the Internet. Rumors says that some D3 engineering samples are already exists, Nikon have the exclusive rights to use this sensor for a one year and there is another 1.5x 12 Megapixels CMOS sensor from Sony soon to be announced.
More from PentaxLife.
Of course, they also reported release at the end of June…
CNet.com also reports on the French pub that said, “18.7-megapixel built by Sony”.