Thom just came out with his 2006 predictions and he's hoping for an AFS 105mm from Nikon. This would be great for UW shooters more than anyone.
http://www.bythom.com/2006predictions.htm
I used the 105mm on my trip to Turks and Caicos and loved it. I found AF to be acceptable actually--preferable to MF especially for my type of shoot 1-3 shots and run style of diving. But it did hunt a lot and AFS would make this a fantastic lens.
If true I'd be happy to put my gently used 105 on ebay.