http://www.bhphotovideo.com/c/product/1028453-REG/panasonic_dmc_gh4kbody_lumix_dmc_gh4_mirrorless_micro.html
Technology has come along way in the video world.
Panasonic seems to be releasing updated micro four thirds cameras at a fast rate. The lens don't seem to have changed as much as the camera bodies. If you don't like what the cameras they have to sell today, just wait a few months and chances are they'll have something new out.
Maybe there will be some deals as they clear out the older models.
Now available for pre order .
In my experience, 4K video in GH4 is better than 1080p at 200MBps. Just downscale in post with the factor of 2, and you'll get same 1080p size but better sharpness.