Hi all,
I've been taking a look at the SVN history[0], and it doesn't look like anything is actively using SVN anymore. Looking at the logs, it doesn't look like much of anything has been committed in the last few months that hasn't since been moved to Git (in Gerrit or elsewhere). This being said:
I'm going to mark all of the MediaWiki SVN repository as read-only tomorrow, Jan. 25th.
Note this won't make anything in SVN go away, as we're still committed to leaving the SVN repositories available in a read-only manner. This also doesn't prevent us from converting extensions or other code to Git if someone decides to resurrect a project. Finally, this does not affect the Wikimedia repository, which still has a couple of active projects.
-Chad