OK - here's my prediction for the announcement on the 19th:
A. The rumored Nikon D3200 with the 24.2 Megapixel DX sensor, which is going to kick Canon's ass pretty hard, and/or....
B. The "D4x", to replace the D3x, which I predict will come with the D800's 36.3 Megapixel sensor AND (given what Canon has been up to with their non-4K C300 with the 4K sensor and their new C500 coming with real 4K and Sony bringing on 4K too...) I expect it to do 4K video and come in around $10K!
Nikon is on a roll and appears to be seriously poised to do to Canon what Canon did to them in the 80s and 90s - out technology them. The D4, D800 and D3200 are spectacular examples. I fully expect the D4x to set a new high water mark by a wide margin.
Nikon, unlike Canon, announces things when they start production and they are almost ready to ship, rather than when they are mere twinklings in their engineers' eyes; to try to stop the bleeding, or perhaps to improve the balance sheet by booking pre-orders as revenue - or both. Their latest announcements are cases in point - they expect the C500 and EOS C to be ready by the end of the year. EOS 1DX pre-order victims who signed up in October are still waiting.... Pretty hard to respect a company that does that to their customers (not to mention their lame 1 yr warranty on cameras and lenses!)
OK - I'm done ranting...