We all have to wait for this one until Kirk releases more details. The press release for the new Concert Strings II in the "News" section of the web site has a date of 11/09/09, so it's likely it will be pretty soon.
The only question I have right now is whether the "Soli Section" strings mentioned in the press release will be a part of the new library, or not. The web site, though vastly improved, seems a little vague about this point.
It's all got me confused. No sooner did I buy Diamond than TVEC came out. I was still pondering whether the upgrade was worthwhile when TVECII comes. No doubt all great advances, but somehow kind of irritating as well.