Glad you like it!
I still have a bunch of work to do on the Jeanne d'Arc, so if ever, not soon.
I am thinking about it, though, mostly because I blew through my update checklist so fast. A tanky capital for taking on stations is one of the niches the game might badly need filled; depending on how a few other things shake out, the Zelenograd might get a powerful defensive system (likely), or I might think up another capital ship. Don't hold your breath, though; capitals are a lot of work to sprite and properly balance (at least, if you don't want them to become barely mobile, uninteresting slabs).
Additionally, I find most capitals kind of boring to fly; I really prefer destroyers and cruisers, ships where mobility and positioning matters more than brute throw weight. Not that brute throw weight, done well, isn't a ton of fun...