(I should have clarified and said that this is for integration of software development for our products and not for the WC system itself.)
It looks like we will continue using subversion for the code side (as I expected), but we will likely want to indicate and track released software in WC. It would be nice to have CRs/CNs tied to subversion and have bug tracking, feature requests, requirements, etc. accessible or visible in WC.
It has also been suggested recently that MKS may integrate with subversion, so we wouldn't have to change source control tools, but may be able to gain the features and integrations that we would want.
John