WELCOME ABOARD!
We all want a Destroyer Command 2. I don't think the hardcoding will allow it, though the Schnellboot mod is coming along nicely and very popular, so I could be wrong.
We're hoping the devs have something like that planned for the future, but the future it's going to have to be; especially since it would require the creation of ship bridges and interiors, and the hiring of British voice actors if it's to be done right.