Not likely. I've known one has been coming for awhile. It will be superior to the 920 in many regards, likely featuring the higher end GPU featured on the 920T in China, but also it is supposed to have a better camera sensor with further enhanced PureView.
But I bought the 822 knowing this and am content. Don't believe this one will be quad-core because of concerns over battery life. There are enhancements to the display coming as well, but the Verizon phone will be Nokia's top dog for awhile.
The astounding thing is that it may only be available on Verizon in the States for a time. I'm still expecting an Easter launch and I'm much more certain about that than I was with the Samsung stuff, but even the Verizon brass seemed to not know exactly everything Samsung has been doing with any of their devices.
There's still something in the pipeline from HTC too. They may also carry the Huawei W1 as a prepaid smartphone. Also looking at other Huawei offerings, checking out LG prototypes, and have communicated with Lenovo about WP8 devices (and Android).
But the Nokia news is a sure bet. Expect a MASSIVE push to go with it and Verizon to make a big deal about it. Nokia will be full bore manufacturing with all their WP8 devices by that time and they want to do mass market. There also will be colors for that phone, more colors for the 822. The current 822 will have new color offerings (already have seen the red one reveal) and likely will go to free with contract once the top end hits. They are looking at a lower price on the high end Nokia as well. Not too sure if it'll get down to the $100 range, but $150 or so may be where it lands with 32GB. May add microSD in addition to the enhanced camera sensor, but not quite sure on that.
Know the sensor is at least 12MP and might be up to 14MP, but it is not the 41MP sensor.