Not particularly believable.
For this product to work, it needs several other pieces of the puzzle:
1. Higher resolution on the same size CCD/CMOS means a process shrink of around 40% to add that many pixels. It isn't directly comparable to say a CPU, which can do other things like make large chips, rearrange the internal parts. Given that a cameras chip is made of few components AND have to keep to a similar size/aspect ratio, there is less flexibility to use these methods.
2 . Better Digic processors to move the data off the chip onto memory cards. You wouldn't go for a camera that has higher resolution and lower frame rates would you? I wouldn't.
3. Given the influx of new 4k video cameras and monitors capable of displaying the images, people would probably want this also, and if you have the sensors and DSP capable of the above, you would want this.
4. Storage space for the resulting photographs/video and CPU capable of editing/storing it would be fairly large but not out of this world expensive. Most people would need to upgrade.
1 and2 are possible, 3 would make this camera compete with their "C" series video cameras and 4 would be a new expense for the camera buyer to pay for..
2015-16 maybe. Not 2014 unless its some "leak" to keep people from upgrading to a Nikon