Since you actually have a camera, you have benefit of waiting it out if u like.
If something had happened to your DSLR I'd say just buy the D7000 straight away.

But since you're in no hurry, you can just wait til something's announced.
Then you have the option of buying the new model or the older one at discount prices.
Since Photokina is next month, probably just wait one month and see what pops up around the corner.

I tend to buy DSLRs on the cheap when they're about to be superseded. I don't really have a need for leading edge technology and by the end of a model's life, everything there is to know about that camera is published somewhere on the net so I know exactly what I'm getting.