Here are the rumored Nikon D7200 specifications:
- New 24MP APS-C sensor
- Nikon D750 styled body with a tilting screen
- Expeed 4 processor
- MultiCAM 3500DX2 autofocus system
- 51 AF points
- Built-in Wi-Fi
- 6fps
- Buffer: 16 RAW+JPG
- Video: 1080p @60 and 720p @120 (not sure about 4k)
- Video aperture will be adjustable during live view
- Expected announcement in the first few months of 2015
If those specifications are correct (I am still not sure), the D7200 will not be a professional level camera – just an incremental D7100 update, something like the D750 in a DX format. This still leaves hope for a real D300 replacement.