Japanese "diving" shells and faulty detonators?

[Norbert Sattler]

Are there any plans to implement the Japanese-style diving shells and use them as an alternative to the light, normal, heavy and superheavy shells?

Also will there ever be a "sort of dud" mechanic, where depending on the faction and time shells and torpedoes can fail to explode upon hits?
Something like the notoriously unreliable mark 14 torpedo on the US side, the German Aal torpedo or the magnetic detonators that saved the British from a friendly fire incident when some of their swordfish accidentally torpedoed their own allied cruiser in the attacks on the Bismarck. Or the shells the German used at Jutland, which resulted in at least one British ship surviving a turret penetration that was exactly like the ones that exploded some of the other British ships due to mishandled flash-protection procedures.