It's all good.... my 7D is plenty enough for now and I must say 22mp can't be the real number given the D800 specs... Why would Canon develop a sensor of this size when the 18mp 1Dx sensor would suit just fine AND lower costs??? A 4mp difference is stupid, so I'm calling bull on these specs.
Remember, this was rated CR3, which are effectively facts. CR1/2 can usually be speculated about, but I would be extremely surprised if the actual released product is something other than 22mp. Its been mentioned that 22mp is beneficial for video pulldown and encoding, and if the 5D III is expected to excel at video, its not surprising a megapixel count beneficial to video was chosen.
I personally am going to bide my time and wait for other Canon announcements this year. My 7D will hold me tidy for quite some time. This is just another camera release, but certainly not the last of the year...perhaps something that caters more to those who need higher resolution will be released by end of year.