The D80 has been around longer than the D40/D40x and would be due for replacement under the schedule Nikon has been following. Seems odd that they would decide to replace the D40 first. I know people around here don't like it due to the focus motor issue, but I thought sales of those models had been pretty strong.
I will likely replace my D70 this year and I don't think I can justify an expense as large as the D300, so I was hoping for a D80 replacement with the new sensor. I'm not sure if a model along the lines of a souped up D40 would be enough for me. I'd have previously thought the lack of a focus motor would be a deal breaker, but now I'm not so sure. I recently bought the Tamron 28-75 f 2.8, which I believe has an internal focusing motor. I'm also looking at the Tokina 12-24, and that has it as well. I haven't had my 50mm lens on the camera since I got the Tamron, and honestly if I could get usable ISO 1600 on a new body it would more than make up for the loss of a stop on the 50mm. I might be more concerned about the lack of a top lcd and other features the D40 is missing if they don't put them into a new model.
Guess I'll just have to wait and see what they come out with.