I don't know if this is the right place for a feature request like this, but a feature I would really appreciate is a very high speed "burst mode", like what the "Phantom HD" is offering us. High speed DRAM costs are going down every month, so I believe putting an (optional) 16GB or 32GB high speed buffer size for very high FPS would be a revolutionary feature without dramatically increasing the manufacturing costs.
And with 16GB, you could easily get 1.6 seconds of 1000 fps 2K, or 1s of 400fps 4K, or 2s of 3200 fps 1K, and so on...
I don't care if I've got to wait 5 minutes after the take for encoding it to the flash/drive, but to be able to shoot at very high frame rates would definitely make my life much easier when it comes to special effects shooting. And I know many other professionals who would agree with me about that particular point.
I think if you could add this feature to the EPIC, you would easily sell hundreds if not thousands more... No need for those cumbersome Photosonic, "Phantom HD" or "Weisscam" anymore! Now that would great, wouldn't it?