There's a new rumor about the upcoming Nikon DSLRs.
It's basically: D4 + D800. Two full frame cameras. The D4 will likely sell for $5,000 and the D800 for $2,800. I'll be shocked if Nikon goes ahead with this strategy.
The more likely outcome: D4 + D400. The D400 will not be a full frame camera but it'll be less than half the price of the D4 which should make it a hot seller and likely the DSLR camera of the year.
We'll find out next month when Nikon will make their announcement of the next even generation DSLRs.