Looks like a nice camera appropriately targeted for sports and wildlife photographers. The frame rate looks great. And if the sensor is essentially the 24 MP sensor in the D3200, quality is a step up from all DX models currently available.
I'm sure the AF system will match the high end FX models and it will have appropriate build and weather seals.
I don't see anything really missing. Perhaps an August announcement for late November delivery will be delivered.