I have heard that there is no Constructware Users Conference this year. The Construction and Real Estate Conference in Scottsdale in October is focused on BIM. Even though Scott Unger is kicking it off, it looks like Constructware will only be discussed as a support to BIM collaboration.
There are only three session on the Autodesk University 2008 agenda that relate to Constructware: one on submittals, one on on NavisWorks and one on BIM team collaboration.
There is a rumor that there will be a 4 hour session at Autodesk University regarding what is happening with Constructware/Buzzsaw, it will not be a formal session and you will not need to register at AU to attend...(?). I don't know about Customer Advisory Board. The Scottsdale Conference mentions a Construction CAB but it is not clear if this is the Constructware CAB.
I hope someone out there knows more than I do.