I have been holding off on posting this until I felt it was just more than a rumor. Now that this has been published in a magazine (Chasseur d'images):
Here's a photo:

Here's a link to the photo in case Pbase won't allow direct linking:
http://jjj.image.pbase.com/u19/latino1973/...702434.1224.jpg
If you do the math, for the D100 and S2pro, this lens will have an equivalent of 18-36mm!!!!!!!
The original announcement was also published in a Japanese trade journal last week. Here is a rough translation of the announcement:
Nikon is developing 4 wide-angle AF lenses for their D-SLR, with a target sales date in spring next year. The existing Nikon D-SLRs use APS-sized sensor, causing a 1.5X conversion factor in focal length. As a result, it is difficult to achieve a lens wider than 28mm in their existing line-up, causing difficulties in expanding their sales volume.
The special point of a D-SLR over conventional digital cameras is that you can exchange the lens of the camera to suit different condition. There is no problem if the image sensor is of the same size as the 35mm film. However, the existing popular type of APS-size sensor is only about 2/3 of the size of film, causing a 1.5x multiplication of lens focal length. 28mm lens become 42mm, reducing the wide angle effect.
Hence, a camera using full size image sensor has its focal length advantage and also better image quality due to larger pixel size. On the other hand, we expect the price of APS-sized D-SLR to drop to 200,000yen which has an advantage over the full size one which its price of 700,000yen is very high.
As the current D-SLR lineup D1X and D100 are based on APS-size sensor, we need to complete the wide-angle lens problem to ease our customers’ dissatisfaction. Moreover, we wish to broaden our customer base via the popular D100.
Currently, there are 4 companies producing D-SLR with APS-sized sensor. They are Nikon, Canon, Fujifilm and Kodak. Canon and Kodak also have full frame D-SLR.
Although there is high demand in Nikon D-SLR from the professional users, at present the trend is not consolidated. The investment on developing high-end D-SLR is very heavy and the product has to be sold at high price. On the other hand, Nikon consider it is better to meet the demand of users of D-SLR APS-sized sensor such that developing the sales at this front could enhance the profitability.
No one can say exactly when these new lenses will be available, but a time of "Spring 2003" has been mentioned.
I think this is fabulous news!!!
Cheers
James Wiseman