Member of the San Francisco Game Group since 2005
This is a customized Bane Tower from the game Man o' War
I just emailed Zvezda with this very question. There are plans. They wrote me back:
Our plan is to periodically release additional ship models every few months. They are finishing up the second pair of ships now, and once they complete development they will begin production. Unfortunately, I cannot predict when that will be at this point in time.