The web is buzzing about a possible new GoPro Hero4 camera capable of 4K video at 30fps. There is also mention of the new Hero4 to offer more manual exposure controls and a built in LCD monitor (no bacpack attachments). If this info is true, it will be another camera i'm guaranteed to pick up.
Not just for drone use, but i've really been keeping an eye out for the most compact 4K video camera combined with an extra wide field of view. Using a wide FOV is perfect for capturing small interior spaces, and the 4K resolution allows you to de-fish while maintaining more than 1080p quality for final output. If the manual exposure works well and the sensor is decent in at least dim lighting, this would be great for some of you guys doing Real Estate tours.
[Update September 29th] Here's the first video from GoPro showing off the new Hero4 4K Camera.
With such a small camera, the only thing you'll need is a mini 3 Axis GoPro Gimbal Stabilizer (like these).
GoPro Handheld Mini 3 Axis Gimbal Stabilizers
The new GoPro Hero4 4K Camera is already listed on the website showing an October 5th release date. You can check it out at the GoPro Website.