Just got through attending a Fortify webinar where J.B. demo'd the latest beta 5.0 version of SCA. Firstly, it was very impressive.
However, one of the most apparent changes is the continual evolution of Audit Workbench (AWB) from a predominantly result's only /verification tool towards a true one stop "work bench". This includes new "right-click" custom rule generation (complete with slick and more intuitive interface) which will dramatically speed up new rule generation based on what is appearing in the code. Of course, the ability to then easily re-run scans from within AWB follows on nicely to help verify new rule accuracy.
More detail to follow once we get our hands on a 5.0 beta version. The current full 5.0 release timeframe appears to be towards Dec/Jan, - further new feature information can be found on the Fortify site.