This is the first reliable rumor I received in a while: in few weeks Nikon will introduce a new version of the Nikon AF-S 200-400mm f/4G IF-ED VR lens. The improvement will be a new VR and few other minor tweaks. I also got a report from Japan that this lens cannot be ordered from Nikon any longer. Not sure yet if this will be the only new product in this announcement.
[NR] Rating: 90% - everything with rating of 90% or above is pretty much a done deal, however final changes in the release schedule are always a possibility.
Nikon AF-S 200-400mm f/4G IF-ED VR was introduced back in 2003.