Obviously you can't assume this has anything to do with results being released, but it is indicative of action. It kind of feels like they are preparing everybody's accounts to upload a new piece of information... or they've decided that leaving that exam authorization up with the various numbers in the url was too much of a security risk after my exploit thread last week and just implemented some security house cleaning.
I'm leaning toward the getting things ready theory though, because I think that they can address the security vulnerabilities in other ways.