[mst]

That's the big question: will there be a D300 successor? I was really convinced there'll be one, but given the specs of the D7100 now I have some doubts.

After a few days of thinking about the issue, I'm now pretty sure again that we'll see a D400 (or whatever the replacement for the D300s will be called).

As you may have read, Nikon Europe clarified that the D7100 is not the new high-end DX camera (even though Nikon USA issued a contradicting statement).

Unlike the D300s, the D7100 can not be registered for NPS.

There is still some room for features which the D7100 doesn't cover. One is speed: a pro-grade cam needs to make at least 8 fps nowadays. And many shooting sports will instantly miss one button on the D7100 (the same one I'm often missing on the D7000): AF-ON.

Given all this, I'm confident will see a successor, soon.

-- Markus