I think Defenders will be "fixed" with a unique cannon or two. A title would be great, but a cannon that adds control options without sacrificing damage would be thematic and awesome.
The Defender is a great Jouster, and doesn't offer much more than that without sacrificing more points/damage/whatever than it should. I'd love to be terrified on behalf of any ship it gets into arc, but know that I can dodge its arc if I play smartly.