The question that needs to be asked is whether or not this strategy will work for another consumer DSLR generation. Such a generation would start to appear in md-to-late 2012. But what would it have that the current ones don't?
I've got some ideas. How about:
- bringing sensor production in house
- a breakthrough in dynamic range
- multi-format sensors, à la Panasonic
- getting rid of the Bayer array
- a true black and white sensor
That's just off the top of my head. I think there are lots of things Nikon could do. Besides, the lower end of the consumer range will probably get eaten by mirrorless at some point anyway.