No, because support of the subversion protocol is not added to apt/yum, you can't use subversion to upgrade, only to retrieve latest versions of packages into local repository. Of course, you can upgrade from local repository, but you need to create it first (and keep it up to date).
Subversion will be useful to mirroring, not for upgrading, because you need to always keep previous version of RPM.
Can you make deltas between FC1 and FC2test? I want to verify support of the Ukrainian locale and translations in it. Transantlantic traffic is not so cheap as local.