Thom Hogan sees the great future for cameras in a modular system. I am not so sure that this is the way forward, given that sensor technology is getting fast enough to provide for all uses in one module: a 40 MPixel sensor could do 15 fps with the full image size, 60 fps at 4K video, and 240 fps at 2K video. The Nikon D800 shows that we are close, missing less than a factor 4 in performance. The only impediment is for a smart person to figure out how to use the sensor backside to provide parallel pixel binning processing to ensure that the main processor is not overloaded, while still being able to make use of the entire sensor to collect the light for video.
And 40 MPixel is about the best you can get in optical resolution from a full frame sensor, so if you need even more, you will need to either stitch or move to larger formats. We see this when comparing lenses tested with the D600 and D800: the benefit of the D800 is typically less than 20% extra resolution, so we are already strongly at the margin of what the lens is capable of.
The real problem will be for the camera makers to figure out how to integrate their cameras with computer control. The basics are extremely simple: use Bluetooth LE and WiFi Direct to provide seamless integration with a tablet for control, and provide an SDK to allow third parties to use these channels for complete remote control. The extremely low power consumption of Bluetooth LE would allow the interface to remain always on without draining the battery, and we could activate lower latency connections on demand. Of course this requires some coordination with tablet makers, but getting this done is essential; you open your camera app and snap a photo, any extra steps will cause friction and frustration.