Hey guys. I'm not sure if this information is posted, but I'll post anyways and if you tell me to remove it, I will. I go to this widely known korean DSLR forum called "SLR CLUB" and this one guy, who's well-known for somewhat accurate forecast of future nikon stuff, posted that there will be a Flagship DX DSLR comming. It will have vertical grip integrated, just like the D3, D3X, and D3S.
This is just another rumor so I'm not very sure if this would be correct but I think it's fun to know.
(FYI, this guy also accurately forecasted that D7000 will be announced this month!)