I'm excited to see ISE 11.3 simply because it allows full installation to use WebPack functionality when not connected to license server or when license is unavailable. It would be nice if Xilinx would past target release dates for updates, but of course they don't. I found on one of their AR (Answer Record) pages that the release date is September 2009. Not an exact date, but nice to know.
AR record: http://www.xilinx.com/support/answers/32744.htm