Nikon officially announced the D7200 today. Here are the specs from Nikon Australia, and a first impression review from DPReview:
https://mynikonlife.com.au/gear/digital-slr-cameras/d7200/
http://www.dpreview.com/previews/nikon-d7200
Basically, the D7200 only offers incremental improvements over the D7100, the most notables ones being a larger frame buffer, improved autofocus in low light, and the addition of Wi-Fi and NFC. For video, there is no 4k, no tilting LCD, and no variable aperture in LiveView. They've added a Flat picture profile and 1080p60 at the 1.3 crop mode.
DPReview thinks that the D7200 uses the same Sony sensor as the D5500 and D3300. Well, those cameras have 1080p60 at the DX (uncropped) mode, too, so I don't know what happened with the D7200 implementation. Unless there is a major improvement in IQ, I really don't see a need to upgrade. In fact, if you're only interested in video, it's probably better to "downgrade" to the D5500.
https://mynikonlife.com.au/gear/digital-slr-cameras/d7200/
http://www.dpreview.com/previews/nikon-d7200
Basically, the D7200 only offers incremental improvements over the D7100, the most notables ones being a larger frame buffer, improved autofocus in low light, and the addition of Wi-Fi and NFC. For video, there is no 4k, no tilting LCD, and no variable aperture in LiveView. They've added a Flat picture profile and 1080p60 at the 1.3 crop mode.
DPReview thinks that the D7200 uses the same Sony sensor as the D5500 and D3300. Well, those cameras have 1080p60 at the DX (uncropped) mode, too, so I don't know what happened with the D7200 implementation. Unless there is a major improvement in IQ, I really don't see a need to upgrade. In fact, if you're only interested in video, it's probably better to "downgrade" to the D5500.