Nikon's release strategy has been crystal clear these past 2 years:
1. Release a new sensor in a high end body (D200, D3,...)
2. Add a medium speced body using the same sensor and mosltly the same processing in a less pro-oriented body (D80, D40x,...) in a less robust body anywhere between a year and a few months after.
I find this fair because people who need the best (pros or semi-pros) get it at a price point they can mostly afford, while amateurs get the same sensor technology a bit later for a lot less money.
It also enables Nikon to design fewer sensors that they can amortize much better thanks to larger series.
My view of Nikon's next introductions is close to Thom's:
- High end FX 24MP D3x mid 08,
- Mid-end DX D90 12MP mid 08 (same sensor as D300 in D80 body with 14 bits processing),
- Low-end DX D60 12MP end 08 (same sensor as D300 in D40x body with 12 bits processing),
- Mid-end FX 12MP D600 mid 09 (same sensor as D3 in completely new body similar to D300 with 14 bits processing),
Cheers,
Bernard