Replying to Nikon D4/D800/D400 Release Dates?

In the near future I'll be looking to buy a Nikon D400 body (whenever it comes out). I've been looking around online and can't find too many specifics about any of the cameras or any of the dates they will be released and such. Anyone want to keep this thread updated as we find out more information about the cameras and release dates? Thanks it'll be a big help to me whether to know if it's even worth the wait for the D400.