This rumored Nikon D800 DSLR is packed with great features, having a massive 36 megapixel sensor. It offers the same feature as that of D3s, having 51-point AF. Compared to D700, this is rumored to be smaller and lighter.
Nikon will probably release it next year only. That's just a wild guess because nobody knows when it's going to be launched. But I guess everyone who's itching for an upgrade just buckle up and must hold off til this new model, Nikon D800 comes out.
Rumored price of D800 is said to be around $3900.
Image from: nikonrumors.com