Adorama has just announced that they are already shipping the new Panasonic DMC-G7. This is a great camera for those looking to dive into 4K Video on a budget as it shares many similarities from the more expensive GH4, or as an excellent B-Cam if you're already working with the GH4. If you're working with Canon lenses, you can still grab the Metabones XL Speed Booster EF to MFT Adapter which will offer more advantages in low lighting and wider FOV.
If you order from Adorama right now, they are even throwing in an Audio-Technica AT8024 Stereo/Mono Camera-Mount Microphone FREE + FREE Expedited Shipping too. This should be a very popular camera, and you can find out more specs (here).