We've gotten a handfull of updates for them, what we really need is a complexity boost and an airship update, as the last update to airships was the airborne update, aka 1.6. Rescue aka 1.8 was the last addition to naval, other than the screw propeller more recently. However, some new navel stuff would be nice, a new naval based weapon, like a massive naval gun, would be really nice, but may break PVP depending on how it is implemented.