Someone will always look for loop holes . Maybe someone will build the naval equivalent of a tank destroyer . Maybe Torpedo Cruisers like the Kuma Class
Tank destroyer equivalents (ships with big guns and lighter armor) are already possible, but they will count as capital ships. The problem with the classic TD model at sea is that unlike World of Warships there doesn't tend to be that much cover on the open ocean.
Torpedo cruisers are certainly a possibility, but the hit chances of torpedoes at ranges over 10,000 yards get very low, and battleship ranges are increasing. A torpedo cruiser like Kitakami is just the equivalent of 2-4 destroyers in torpedo firepower. It uses less crew, but is a single target and less versatile than those same destroyers.
What was proposed on occasion was a torpedo battleship or better battlecruiser. The idea was that a heavily armored ship with a light gun armament and heavy torpedo armament could get close enough that it could launch torpedoes with a good hit chance. Unfortunately no ever took the idea seriously enough to actually build, probably because it would get torpedoed by destroyers as it closed.