According to DPReview:
Nikon has announced the much-rumored D610 24MP full-frame DSLR. Coming just a year after the D600, the D610 appears to be a very minor refresh, with a quiet continuous shooting mode, improved white balance and faster continuous shooting touted as its major changes. Beyond this, the D610 is essentially the same camera as the D600 and, given its launch at the same $2000 SRP, it’s extremely likely that the D610 replaces the older camera.
What about video:
Capture stunning Full 1080P HD video in a variety of frame rates, including a cinematic 24p, 30p and 60i. A useful feature inherited from professional Nikon cameras, the Nikon D610 can feed 100% full screen, uncompressed video via HDMI to an external device such as a monitor or digital recorder. Additionally, a stereo microphone and headphones can be connected through thoughtfully placed auxiliary input jacks for capturing and monitoring audio.
It shoots the same old H.264 in 25, 24 and 30p. 60p in 1280 x 720 only. I think they had the chance to get into the video space, looks like they have decided it isn’t important enough.
Read the full press release here.